ABOUT US PRODUCTS CONTACT SUPPORT SAND FILTER 143 143 Commercial Pool Sand Filter System Hover to zoom MER-MADE’s rugged fiberglass tanks are a breakthrough in filter manufacture. These long-life tanks are designed for 50 psi working pressure in three different diameters and a variety of lengths, with filter areas up to 45.5 square feet. Filtration: Filtration is the physical process of removing solids through a substrate. If not eliminated those solids can interfere with and impede the water purifying process. Mer-Made utilizes a multimedia substrate for our sand filters. Two grades of gravel below a top-level sand bed provide proven industry-leading water clarity. How it works: Solids are captured in the filter bed itself while solid particles lodge in the tiny spaces and voids between the sand grains and lotions and oils tend to cling to the grains of filter sand. Gravel/stone serves as a barrier that prevents the sand from washing through the effluent header into the pool during the filter cycle, and also distribute the flow of water uniformly to the underside of the sand bed during the backwash cycle. FIBERGLASS TANKS Single tank Dual tank Multiple tank SYSTEMS AVAILABLE RATES FILTERING: Up to 20 GPM per sq. ft. BACKWASH: 15 GPM per sq. ft. More Information Variety of filter areas Stackable Numerous Face Piping Arrangements Area Up To 81.6 Square Feet All Mer-Made filter Systems are certified by NSF international and ANSI/NSF standard 50 for pool and spa applications. DESCRIPTION SERIES 143 DOWNLOADS SPECIFICATIONS SERIES 143 Filter tanks are manufactured from fiberglass using heavy woven cloth as necessary for strength and have a minimum wall thickness of 0.3″. Filter tanks are designed for 50 psi working pressure with a safety factor of 4 to 1. They are factory tested at 75 psi. The effluent header is designed so that uniform collection of filtered water and distribution of backwash water is provided under the entire media area. The pipe is slotted PVC. The total area of slots in the filter is equal to (4) times the area of the inlet pipe. The orifices in top laterals are equal to (7) times the area of the inlet pipe. The filter tank is provided with 12″ x 16″ fiberglass elliptical manway with gasket, yoke, and bolt cover which is sealed by internal pressure. The filter is designed for a filter rate of up to 14 GPM per square foot of filter area and a backwash rate of 15 GPM per square foot of filter area. To receive cad drawings, quotes or additional product information please contact us. Industry leading 15-year warranty CALL US TEL: (803) 793-4265 FAX: (803) 793-4332 LINKS HOME ABOUT PRODUCTS CONTACT MEET US MER-MADE FILTER, INC. 11746 Charleston-Augusta Road P.O. Box 306 Denmark, SC 29042 We'll assume you're ok with this, but you can opt-out if you wish.Accept Read More