Abstract:
A pump is mounted in a craft, wherein usage of the craft is associated with a repetitive motion. For example, the craft could be a kayak and the repetitive motion could be paddling. The pump is mounted in a manner such that in the course of performing the repetitive motion the pump is activated.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]     This application claims priority benefit of U.S. provisional application 60/719,922, entitled, “Pump System,” by Travis Johnson, filed Sep. 23, 2005, which is incorporated herein by reference. 
     
    
     BACKGROUND  
       [0002]     1. Field  
         [0003]     This invention relates to a craft associated with a repetitive motion or to a pump system.  
         [0004]     2. Prior Art  
         [0005]     The subject matter discussed in the background section should not be assumed to be prior art merely as a result of its mention in the background section. Similarly, a problem mentioned in the background section or associated with the subject matter of the background section should not be assumed to have been previously recognized in the prior art. The subject matter in the background section merely represents different approaches, which in and of themselves may also be inventions.  
         [0006]     When paddling certain types of craft, the user may experience a build-up of water or other fluid in their craft. This makes the craft harder to paddle, may cause a loss of balance, and in some cases can be dangerous. Some methods of water removal are sponging, dumping, bailing, and hand pumping.  
     
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       [0007]     In the following drawings, like reference numbers are used to refer to like elements. Although the following figures depict various examples of the invention, the invention is not limited to the examples depicted in the figures.  
         [0008]      FIG. 1A  shows a side view of one embodiment of the pump system installed in a water craft.  
         [0009]      FIG. 1B  shows a top view of one embodiment of the pump system installed in a water craft.  
         [0010]      FIG. 1C  shows a top view of a two chamber embodiment of the pump system installed in a water craft.  
         [0011]      FIG. 2  shows one embodiment of the pump chamber of the pump system.  
         [0012]      FIG. 3A  shows the side of one embodiment of the intake port of the pump system.  
         [0013]      FIG. 3B  shows the bottom of one embodiment of the intake port of the pump system.  
         [0014]      FIG. 4A  shows the side of one embodiment of the through hull exhaust port of the pump system.  
         [0015]      FIG. 4B  shows the top of one embodiment of the through hull exhaust port in a closed position.  
         [0016]      FIG. 4C  shows the top of one embodiment of the through hull exhaust port in an open position.  
         [0017]      FIG. 4D  shows side view of a through hull exhaust port that fits in the drain plug opening of a water craft.  
         [0018]      FIG. 4E  shows a top view of a through hull exhaust port that fits in the drain plug opening of a water craft.  
         [0019]      FIG. 5  shows an embodiment of the pump system having the through hull exhaust port in the drain plug opening.  
         [0020]      FIG. 6  shows an alternate embodiment for a craft with foot pegs (instead of a bulkhead).  
         [0021]      FIG. 7  shows a flowchart of an example of a method of installing the pump system.  
         [0022]      FIG. 8  shows a flow chart of an example of a method of the operating pump system.  
     
    
     DETAILED DESCRIPTION  
       [0023]     Although various embodiments of the invention may have been motivated by various deficiencies with the prior art, which may be discussed or alluded to in one or more places in the specification, the embodiments of the invention do not necessarily address any of these deficiencies. In other words, different embodiments of the invention may address different deficiencies that may be discussed in the specification. Some embodiments may only partially address some deficiencies or just one deficiency that may be discussed in the specification, and some embodiments may not address any of these deficiencies.  
         [0024]     In general, at the beginning of the discussion of each of  FIGS. 1A-6  is a brief description of each element, which may have no more than the name of each of the elements in the one of  FIGS. 1A-6  that is being discussed. After the brief description of each element, each element is further discussed in numerical order. In general, each of  FIGS. 1A-8  is discussed in numerical order and the elements within  FIGS. 1A-8  are also usually discussed in numerical order to facilitate easily locating the discussion of a particular element. Nonetheless, there is no one location where all of the information of any element of  FIGS. 1A-8  is necessarily located. Unique information about any particular element or any other aspect of any of  FIGS. 1A-8  may be found in, or implied by, any part of the specification.  
         [0025]      FIG. 1A  shows a side view a craft  100  to which an embodiment of pump system  101  (according to an embodiment of the invention) has been attached. Shown in  FIG. 1A  as either part of craft  100  or pump system  101  are grab loop handle  102 , bulkhead adjustment rail  106 , fastener  108 , intake hose  110 , cockpit  112 , seat  114 , first bulkhead  118 , second bulkhead  120 , hose clamps  122 , exhaust hose  126 , pump chamber  200 , intake port  300 , and through hull exhaust port  400 . In other embodiments, craft  100  and/or pump system  101  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0026]     Although in  FIG. 1A  craft  100  is depicted as a kayak, craft  100  may be any of a number of different types of crafts for which a paddle or oars are used, such as a kayak, canoe, or row boat. Craft  100  may also be any other type of craft in which the user performs repetitive motions (e.g., peddling) as part of operating the craft in which part of the repetitive motion (e.g., pushing down on a peddle) may be used to activate a pump chamber. For example, craft  100  may be any craft within which the user tends to perform a repetitive motion (e.g., a repetitive motion craft). Consequently, the user of craft  100  may be a paddler or a rower or other type of operator of a craft depending on the specific embodiment of craft  100 . Additionally, craft  100  is not necessarily a water craft, but may be (for example) another type of craft having an enclosure within which water may collect, such as an enclosed peddle powered go cart being used in the rain. Finally, craft  100  may be intended to operate on a tank containing a fluid other than water (e.g., sludge).  
         [0027]     Grab loop  102  may be used for lifting or carrying craft  100 . Bulkhead adjustment rail  106  may be used for adjusting and/or fixing the bulkhead in various positions for different sized users. Fastener  108  fastens intake hose  110  to bulkhead adjustment rail  106 . Intake hose  110  has one end at or near the bottom of craft  100  and the other end connected to a pump chamber. Fluids that collect on the floor of craft  100  may be brought to the pump chamber via intake hose  100 . In other embodiments, intake hose  100  may be secured to other items, such as the walls of craft  100  in addition to or instead of being fastened to bulk head adjustment rail  106 . Securing intake adjustment hose in place may decrease the likelihood of damaging or disconnecting intake adjustment hose  110  while paddling. Alternatively, intake hose  110  may be left partially dangling, fully dangling, or routed through foam blocking inside the craft. Cockpit  112  may be used to sit in by the user while paddling. Seat  114  may be located within cockpit  112 . The user may sit in seat  114  while paddling. First bulkhead  118  may be made from a flexible foam material, such as a polystyrene plastic (often sold as Styrofoam®), and may be used for the user to rest his or her feet. If craft  100  is a kayak, canoe, or rowboat having a bulkhead, the user&#39;s feet may press against first bulkhead  118  while paddling or performing another repetitive motion associated with using craft  100 . First bulkhead  118  may have the shape of a rectangular sheet or a rectangular block, and may have a recess carved or otherwise formed on one or more side for receiving the pump chamber. Second bulkhead  120  (which may be made from a rigid plastic or other rigid material) may provide a stable platform for supporting first bulkhead  118  and the user&#39;s feet while the user&#39;s feet presses against first bulkhead  118  while paddling. First bulkhead  118  and second bulkhead  120  form a mount for the pump chamber. Hose clamps  122  fasten hoses to various ports. Hose clamps  122  fasten intake hose  110  to the intake port and to a port on the pump chamber, and fasten the exhaust hose to the pump chamber and to an exhaust port. Exhaust hose  126  is used for bring fluids from a pump chamber to a location exterior to craft  100 .  
         [0028]     Pump chamber  200  may include a chamber that is capable of holding and pumping a fluid. Pump chamber  200  may include a resilient flexible material, and may be characterized as a bladder. Pump chamber  200  may be mounted within a recess of first bulkhead  118 . In an embodiment, intake port  300  of the system is located at or near the lowest point of the craft  100  (possibly under seat  114 ). Intake port  300  is connected to an intake hose  110 , which travels to the front of craft  100 . Intake hose  110  is secured by fasteners  108  to bulkhead adjustment rail  106 . Securing intake hose  110  helps prevent intake hose  110  from moving around and being disconnected. Intake hose  110  connects intake port  300  to pump chamber  200 . Exhaust hose  126  connects from the pump chamber  200  to through hull exhaust port  400 . Although in  FIG. 1A  exhaust port  400  is located just in front of cockpit  112 , where exhaust port  400  is easy to reach, in other embodiments exhaust port  400  may be located further from cockpit  112  and/or angled away from cockpit  112 .  
         [0029]     Pump chamber  200  is discussed further in conjunction with  FIG. 2 . Intake port  300  is discussed further in conjunction with  FIG. 3 . Exhaust port  400  is discussed further in conjunction with  FIG. 4 .  
         [0030]      FIG. 1B  shows a top view of craft  100  with pump system  101 . Shown in  FIG. 1B  as either part of craft  100  or pump system  101  are grab loop handle  102 , bulkhead adjustment rail  106 , fastener  108 , intake hose  110 , cockpit  112 , seat  114 , first bulkhead  118 , second bulkhead  120 , hose clamps  122 , exhaust hose  126 , pump chamber  200 , intake port  300 , and through hull exhaust port  400 . In other embodiments, craft  100  and/or pump system  101  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0031]     Pump system  101 , grab loop handle  102 , bulkhead adjustment rail  106 , fastener  108 , intake hose  110 , cockpit  112 , seat  114 , first bulkhead  118 , second bulkhead  120 , hose clamps  122 , exhaust hose  126 , pump chamber  200 , intake port  300 , and through hull exhaust port  400  were discussed in conjunction with  FIG. 1A  (additionally, as mentioned above, pump chamber  200  will be discussed further in conjunction with  FIG. 2 , intake port  300  will be discussed further in conjunction with  FIG. 3 , and exhaust port  400  will be discussed further in conjunction with  FIG. 4 ).  
         [0032]     In the embodiment of  FIG. 1B , pump system  101  is installed in the right side of craft  100 . There are many other embodiments of this invention. In an embodiment, multiple pump chambers and multiple intake ports can also be used. Also, pump chamber  200  can be in various locations that would still receive pressure from a user&#39;s body during the operation of the craft. In one embodiment, multiple pump chambers and multiple intake ports can be used to provide more pumping capability. For example, two pump systems may be installed, such that each side of craft  100  has one pump. Specifically, in one alternative embodiment, pump system  101  is installed in the left side of craft  100  in addition to or instead of being installed on the right side. As another example, in addition to or instead of pump chamber  200 , a pump chamber can be installed in a variety of other places, such as the seat back-band, the seat pad, under the seat, and/or in the thigh braces of the craft and inside or mounted too a padded foot bag (for small kayaks). Pump chamber  200  may be placed in any location that causes energy being expended on paddling, steering the craft, or another repetitive motion to activate pump chamber  200  (e.g., by depressing pump chamber  200 ). From the description above, it can be seen that in the embodiment in which craft  100  is a paddle craft, when paddling, a person applies pressure to the bulkhead of the craft to propel it forward and to steer it. Pump system  101  may use that pressure to remove water. Since pumping does not require any separate action by the user, a user may not even realize that they are operating pump system  101 . Embodiments of pump system  101  may be constructed such that pump system  101  is very lightweight, and may only add approximately 1 pound to the overall weight of the craft. Using pump chamber  200 , the user can vary the amount of water removal by varying the degree to which pump chamber  200  is depressed, which may be accomplished by changing the user&#39;s foot position so that the user&#39;s foot depresses a small portion of pump chamber  200 . Compressing the entire chamber of pump chamber  200  results in maximum displacement, whereas compressing the edge (normal foot position) of pump chamber  200  results in minimum displacement.  
         [0033]     Thus, pump system  101  may effectively and efficiently remove fluids from craft  100  without requiring the operator to perform a separate action. Simply by paddling or performing another repetitive action associated with using craft  100 , the user will remove fluid if any is present in craft  100 . Furthermore, if craft  100  is a water craft, pump system  101  may provides a method to return to safety should a crack develop in the hull of craft  100 . Also, in the case in which pump system is a water craft, pump system  101  may help keep the user warm and/or safe by removing cold water or another fluid from inside craft  101 . Similarly, craft  100  may be kept lighter and more maneuverable by using pump system  101  to remove water or another fluid from craft  100 . Also, in the case of craft  100  having a spray skirt (or spray deck), pump system  101  may be used to remove water or another fluid without having to remove the spray skirt, and thereby avoiding exposing the user to the possibility of an influx of more water or another fluid. The capability of removing water or another fluid from craft  100  without removing the spray skirt is useful when the body of water or other fluid does not have are a calm spot or a spot with eddies within which the spray deck may be safely removed.  
         [0034]      FIG. 1C  shows a top view of a craft  100  to which is attached an embodiment of a two chamber pump system  151 . Shown in  FIG. 1C  as either part of craft  100  or pump system  151  are grab loop handles  102 , barbed tee  104 , bulkhead adjustment rails  106 , cockpit  112 , seat  114 , second bulkhead  120  (first bulkhead  118  is not present in this embodiment), exhaust hose  126 , intake hose  110 , drain plug opening  162 , pump chambers  200   a  and  200   b , intake port  300 , and through hull exhaust port  420 . In other embodiments, craft  100  and/or pump system  151  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0035]     Grab loop handle  102 , bulkhead adjustment rail  106 , cockpit  112 , seat  114 , second bulkhead  120 , and intake port  300  were discussed as part of  FIG. 1B . Pump chambers  200   a  and  200   b  of  FIG. 1C  may be the same as pump chamber  200  discussed in conjunction with  FIGs. 1A and 1B .  FIG. 1C  simply illustrates how two barbed tees  104  may parallel two pump chambers  200   a  and  200   b.    
         [0036]      FIG. 2  shows an embodiment of the pump chamber  200 . Pump chamber  200  may include an intake connection  202 , a exhaust connection  204 , mounting tabs  206 , check valve housing  208 , exhaust check valve  210 , and intake check valve  212 . In other embodiments, pump chamber  200  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0037]     Although in the example of  FIG. 2 , pump chamber  200  has an oval shape, pump chamber  200  can have various shapes such as triangular, trapezoidal, etc. In an embodiment, the positions of the intake check valve  212  and exhaust check valve  210  may be swapped to allow for a simple parallel connection of the pump chambers as shown in system  151 . Also, in an embodiment, intake connection  202  and exhaust connection  204  may be barbed nipples that are capable of swiveling 360 degrees. In other embodiments other forms of connections may be used, which may or may not be barbed, and may or may not swivel 360 degrees. For example, intake connection  202  and/or exhaust connection  204  may have threaded ends to which hoses may be screwed or may have ends that do not have any threads and are not barbed. Similarly, intake connection  202  and/or exhaust connection  204  may not swivel at all or may swivel an amount less than 360 degrees. Using a barbed shape for intake connection  202  and exhaust connection  204  may aid in securing in place hoses that are attached thereto. Constructing intake connection  202  and exhaust connection  204  so that they swivel may also facilitate connecting hoses to intake connection  202  and exhaust connection  204  from any direction. Any of a variety of pump chambers may be used instead of pump chamber  200 . For example, the intake and exhaust may be simple flexible or rigid tubes instead of intake connection  202  and exhaust connection  204 . In an embodiment, instead of or in addition to mounting tabs  206 , pump chamber  200  may be held in place with clamps, straps, brackets, epoxy, and/or braces. Check valve housing  208  protects check valves located within the check valve housing. Exhaust check valve  210  and intake check valve  212  mounted inside the check valve housing  208 . Exhaust check valve  210  allows fluids out of, but not into, pump chamber  200 . Intake check valve  212  allows fluids into, but not out of, pump chamber  200 . In an alternative embodiment, check valve housing  208  may not be included, and/or exhaust check valve  210  and/or intake check valve  212  may be mounted elsewhere.  
         [0038]      FIGS. 3A  and B show an example of intake port  300 . Specifically,  FIG. 3A  shows the side of one embodiment of the intake port  300 , and  FIG. 3B  shows the top of one embodiment of intake port  300 . Intake port  300  may include of a connection  304 , intake orifice  302 , recessed grooves  306 , sand screen  308 , and threaded hole  312 . In other embodiments, intake port  300  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0039]     In one embodiment, intake port  300  may be fused or glued to the hull of craft  100 . Other methods of mounting may include a bracket or screw. Intake orifice  302  may help collect fluid, and may provide a hollow passage that allows fluid to be drawn from the bottom of craft  100  to connection  304 . Connection  304  provides a rigid connection point for the intake hose to terminate. In an embodiment, connection  304  may be a barbed nipple. In other embodiments other forms of connections may be used, which may or may not be barbed. For example, connection  304  may have threaded ends to which hoses may be screwed or may have ends that do not have any threads and are not barbed. Using a barbed nipple for connection  304  may aid in securing in place hoses that are attached thereto. Recessed grooves  306  may allow and/or direct fluid movement towards intake orifice  302  through sand screen  308 , and may help collect the fluid that enters intake orifice  302 . Fluid collected via recessed grooves  306  may be drawn through a hollow passage way including intake orifice  302  to connection  304 .  
         [0040]     In another embodiment, intake port  300  may be the end of a tube that is secured to a location at or near the bottom of craft  100 . Although in the embodiment of  FIG. 3 , intake orifice  302  is above and facing hull of craft  100 . In another embodiment, two holes are placed at or near the bottom of craft  100 , one hole is above intake port  300 , and intake orifice is located below hull and outside of craft  100  facing up for collecting fluids. Another hole allows a tube to connect to orifice  302  to enter craft  100  so that the fluid collected by intake port  300  may be pumped by pump chamber  200 , or  200   a  and  200   b  upward and out of exhaust port  400  or  420 .  
         [0041]     FIGS.  4 A-C show an example of through hull exhaust port  400 . Specifically,  FIG. 4A  shows a side view of one embodiment of through hull exhaust port  400 .  FIG. 4B  shows a top view of one embodiment of through hull exhaust port  400  in a closed position.  FIG. 4C  shows a top view of one embodiment of through hull exhaust port  400  in an open position. Through hull exhaust port  400  may include on/off selector cap  402 , sealing gasket  404 , locking nut  406 , threaded shaft  408 , and barbed hose connector  410 . In other embodiments, through hull exhaust port  400  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0042]     On/off selector cap  402  allows the user to turn the system on and off by rotating selector cap  402  by a rotation of 90 degrees. Conical shaped sealing gasket  404  allows exhaust port  400  to fit in various sized openings (for the drain plug opening alternate detailed in  FIG. 5 ) and creates a seal preventing water from entering. Locking nut  406 , which tightens on the threaded shaft  408 , holds the exhaust port  400  in place and provides pressure to seal the opening. In an alternative embodiment, exhaust port  400  may be glued (with water proof glue) and/or clamped and sealed in place in addition to or instead of using lock nut  406 . Exhaust hose  126  connects to the barbed hose connector  410  and is secured with hose clamps  122 . Placing on/off selector cap  402  in the off position may cause pump chamber  200  to become firm. The on position can be obtained by a quick rotation of the on/off selector cap  402 , which may be located at a location that is expected to be within reach of the user, so that the user does not need to exit craft  100  to change the position of on/off selector cap  402 .  
         [0043]     In another embodiment, hull exhaust port  400  may be any of a variety of other types of ports. For example, hull exhaust port  400  may be nothing more than the end of a tube that is secured to the outside of the hull of craft  100 , such that fluid pumped out of craft  100  is not expected to ordinarily re-enter craft  100 . In another embodiment, exhaust port  400  may be a one-way valve that is expected to allow fluids to exit, but is also expected to not allow a significant amount of fluid to enter. In another embodiment, exhaust port  400  may have a cap and/or a lid that flips open in addition to or instead of a rotating cap.  
         [0044]      FIG. 4D  shows a side view of through hull exhaust port  420 . Through hull exhaust port  420  may include sealing gasket  422 , barbed hose connector  424 , and handle  428 .  
         [0045]     Through hull exhaust  420  is a hollow threaded plug that may screw into the existing drain plug opening of craft  100  or other opening in craft  100 . The embodiment of FIG.  4 D also includes sealing gasket  422 , barbed hose connector  424 , and handle  428 . Sealing gasket  422  creates a water tight seal between the hull of craft  100  and through hull exhaust  420 . Barbed hose connector  424  may connect to exhaust hose  126 . Handle  428  may be used to grasp the exhaust port  420  and screw it into place.  
         [0046]      FIG. 4E  shows a top view of through hull exhaust  420  having hollow center  426 . Water from exhaust hose  126  exits through hull exhaust  420  via hollow center  426 . In other embodiments, through hull exhaust  420  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0047]      FIG. 5  shows an additional embodiment, which is system  500 .  FIG. 5  shows craft  100 , hose clamp  122 , exhaust hose  126 , drain plug opening  162 , and through hull exhaust port  400  or  420 , which were described in conjunction with  FIG. 1  and FIGS.  4 A-E, above. In other embodiments, system  500  may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0048]     System  500  may be installed without adding another hole to the hull of craft  100 , and may therefore be used as an after market add-on. System  500  works almost identically to the embodiments of  FIGS. 1A-4E . System  500  does not require the user to drill a hole in his/her craft, because the through hull exhaust port  400  or  420  is mounted in the existing drain plug opening of craft  100 .  
         [0049]      FIG. 6A -B show another embodiment of pump system  101 .  FIG. 6A -B show craft  100 , grab loop handle  102 , fastener  108 , intake hose  110 , cockpit  112 , seat  114 , first bulkhead  118 , second bulkhead  120 , hose clamps  122 , exhaust hose  126 , pump chamber  200 , intake port  300 , through hull exhaust port  400 , foot peg  618 , and foot peg adjustment rail  620 . In other embodiments, the system of  FIG. 6A -B may not have all of the parts listed and/or may have other parts instead of or in addition to those listed.  
         [0050]     Craft  100 , grab loop handle  102 , bulkhead adjustment rail  106 , fastener  108 , intake hose  110 , cockpit  112 , seat  114 , hose clamps  122 , exhaust hose  126 , pump chamber  200 , intake port  300 , and through hull exhaust port  400  were discussed in conjunction with  FIGs. 1A-4D , above.  
         [0051]     In  FIG. 6 , foot peg  618  is used instead of an adjustable bulkhead. The pump chamber  200  can be mounted on or next to the foot peg  618  in such a way that allows the user&#39;s foot to compress the chamber.  
         [0052]      FIG. 7  shows a flowchart of an example of a method of installing pump system  101  or  151  in craft  100 . A manufacturer of craft  100  or end user may install pump system  101  or  151  in a similar manner (as detailed in  FIG. 7 ). In step  700 , the pump chamber  200  is, or  200   a  and  200   b  are, screwed to the second bulkhead  120 . For crafts with a first bulkhead  118 , in step  701  an oval is cut into first bulkhead  118  to receive pump chamber  200  (or  200   a  &amp;  200   b ). In step  702 , first bulkhead  118  (if present) is glued to second rigid bulkhead  120 . In step  704 , the user selects the existing drain plug opening or drills an additional hole on the bow of craft  100 . Additionally, through hull exhaust port  400  or  420  may be installed by tightening locking nut  406  or twisting handle  428 , respectively. In step  706 , the intake port  300  is glued, fused, screwed, or otherwise secured in place with respect to the hull of craft  100  at or near the lowest point of craft  100 . In step  708 , exhaust hose  126  is connected from pump chamber  200  via exhaust connection  204  (or from pump chambers  200   a  and  200   b  with barbed tee  104 ) to through hull exhaust port  400  or  420  (and, in the case of the embodiment of  FIG. 1B , is secured with hose clamps  122  and fasteners  108 ). In step  710 , the intake hose  110  is connected from the intake port  300  to the intake connection  202  on the pump chamber  200  (or to barbed tee  104  and then to  202   a  and  202   b ).  
         [0053]     In an embodiment, each of the steps of method of  FIG. 7  is a distinct step. In another embodiment, although depicted as distinct steps in  FIG. 7 , steps  700 - 710  may not be distinct steps. In other embodiments, the method of  FIG. 7  may not have all of the above steps and/or may have other steps in addition to or instead of those listed above. For example, in an alternative embodiment, intake port is allowed to rest on the floor of craft  100 , without being attached to craft  100  and/or intake port  300  is just the end of intake hose  110 , in which case steps  706  and/or  710  are skipped. The steps of the method of  FIG. 7  may be performed in another order. Subsets of the steps listed above as part of the method of  FIG. 7  may be used to form their own method. The method of  FIG. 7  may be stored on a machine readable media as a set of machine instructions for controlling equipment in a factory that attaches pump system  101  to craft  100 .  
         [0054]      FIG. 8  shows a flow chart of an example of a method of operating pump system  101  or  151  after the pump system has been installed in a paddle craft or row boat. When operating craft  100 , the user exerts forces on said craft to propel and steer it. This energy is utilized to operate a pump system for removing nuisance water from the craft. As detailed in  FIG. 8 , step  800  starts the process when a user takes a forward stroke and compresses the pump chamber  200  or  200   a  and  200   b  with his/her foot. In step  802 , when the foot pressure is released, the elastic nature of the chamber  200  or  200   a  and  200   b  causes it to expand. Due to check valve  210  inside the pump chamber, the water is drawn into the chamber from the intake port  300 . In step  804 , when the next paddle stroke is taken, the pump chambers  200  or  200   a  and  200   b  are again compressed. In step  806 , the closing of the pump chamber check valve  212  forces the water towards the through-hull exhaust port through the exhaust hose  126  and is jettisoned from craft  100 .  
         [0055]     In an embodiment, each of the steps of the method of  FIG. 8  is a distinct step. In another embodiment, although depicted as distinct steps in  FIG. 8 , step  800 - 806  may not be distinct steps. In other embodiments, the method of  FIG. 8  may not have all of the above steps and/or may have other steps in addition to or instead of those listed above. The steps of the method of  FIG. 8  may be performed in another order. Subsets of the steps listed above as part of the method of  FIG. 8  may be used to form their own method.  
         [0056]     A kit may be constructed that includes the components of the pump system of any of the embodiments of  FIGS. 1A-6  and a set of instructions describing a method of assembling the kit, such as one of the embodiments the method of  FIG. 7 , and/or a method of using the kit after the kit is assembled, such as one of the embodiments of the method of  FIG. 8 . The set of instructions may be stored on any of a number of storage media, such as paper or a machine readable media (e.g., a computer readable media), such as a Compact Disc (CD), in a form that a human may read and understand. The kit may be sold with or without craft  100 .  
         [0057]     Any of the above embodiments may be used separately or together in any combination. For example the example of  FIGS. 5 and 6  may be used together on the same craft. Although the description above contains much specificity, it should not be construed as limiting the scope of the invention but as merely as providing illustrations of some of the embodiments of this invention. Thus, the scope of this invention should be determined by the appended claims and their legal equivalents, rather than by the examples given.