A water application device (10/100) comprising: a main body (20/110) graspable along a handle portion (22/119) thereof by an operator, the main body (20/110) housing a flow control assembly configured to enable the device (10/100) to execute a control function relative to flow of water through the device (10/100); and an operable member (30/140) attachable to the main body (20/110) to interface with the flow control assembly to alternately provide flow and stop flow based on a position of the operable member (30/140), the operable member (30/140) having a length extending substantially parallel to an axis of the handle portion (22/119), wherein the operable member (30/140) interfaces with a locking member disposed at a first surface of the operable member (30/140), the first surface facing away from the main body (20/110), wherein the locking member is configured to enable the operator to lock the operable member (30/140) in a flow provision state based on positioning the locking member in a locked state by engaging with a locking head via an engagement portion, and wherein the locking member is configured to move between the locked state and an unlocked state via movement relative to the first surface in a direction substantially perpendicular to the axis of the handle portion (22/119) wherein the operable member (30/140) comprises a trigger pivotally attached to the main body (20/110), and wherein the trigger is pivoted toward the main body (20/110) and away from the main body (20/110) in the unlocked state, and wherein the trigger is pivotally attached to the main body (20/110) at a pivot point that is proximate to an inlet (26/114) of the main body (20/110), whereby the locking member is disposed proximate to an opposite end of a trigger relative to the pivot point, characterized in that the front portion of the operable member (30/140) defines the first surface that faces away from the main body (20/110) and extends along the longitudinal length of the operable member (30/140) from an area proximate to its pivot point to a protrusion disposed at a distal end of the operable member (30/140) relative to the pivot point, and wherein the locking member is disposed in a receiving slot formed in the operable member (30/140), the receiving slot passing from the first surface entirely through the operable member (30/140) to enable an engagement portion of the locking member to contact a locking head disposed at a portion of the main body (20/110) based on a position of the locking member. a main body (20/110) graspable along a handle portion (22/119) thereof by an operator, the main body (20/110) housing a flow control assembly configured to enable the device (10/100) to execute a control function relative to flow of water through the device (10/100); and an operable member (30/140) attachable to the main body (20/110) to interface with the flow control assembly to alternately provide flow and stop flow based on a position of the operable member (30/140), the operable member (30/140) having a length extending substantially parallel to an axis of the handle portion (22/119), wherein the operable member (30/140) interfaces with a locking member disposed at a first surface of the operable member (30/140), the first surface facing away from the main body (20/110), wherein the locking member is configured to enable the operator to lock the operable member (30/140) in a flow provision state based on positioning the locking member in a locked state by engaging with a locking head via an engagement portion, and wherein the locking member is configured to move between the locked state and an unlocked state via movement relative to the first surface in a direction substantially perpendicular to the axis of the handle portion (22/119) wherein the operable member (30/140) comprises a trigger pivotally attached to the main body (20/110), and wherein the trigger is pivoted toward the main body (20/110) and away from the main body (20/110) in the unlocked state, and wherein the trigger is pivotally attached to the main body (20/110) at a pivot point that is proximate to an inlet (26/114) of the main body (20/110), whereby the locking member is disposed proximate to an opposite end of a trigger relative to the pivot point, characterized in that the front portion of the operable member (30/140) defines the first surface that faces away from the main body (20/110) and extends along the longitudinal length of the operable member (30/140) from an area proximate to its pivot point to a protrusion disposed at a distal end of the operable member (30/140) relative to the pivot point, and wherein the locking member is disposed in a receiving slot formed in the operable member (30/140), the receiving slot passing from the first surface entirely through the operable member (30/140) to enable an engagement portion of the locking member to contact a locking head disposed at a portion of the main body (20/110) based on a position of the locking member.