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143 Commercial Pool Sand Filter System

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 81.6 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 extremely small 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 which prevents the sand from washing through the effluent header into the pool during the filter cycle and also to 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.

  • Single 143 Filter


    Stacked 143 Filter

     

    Sand Filter Model “A” Length of Tank Sq. Ft. Filter Area Face Piping Diameter Max. Flow @ 12GPM Max. Flow @ 15GPM Max. Flow @ 20GPM “B” “C” “D” “E”
    143-56 62″ 16.2 4″ 194 243 324 20″ 24″ 18″ X
    143-71 77″ 20.8 4″ 250 312 416 24″ 32″ 21″ X
    143-87 94″ 25.6 4″ 307 384 512 27″ 42″ 25″ X
    143-105 112″ 31.0 6″ 372 465 620 26.5″ 65″ 20.5″ X
    143-124 131″ 36.8 6″ 442 552 736 27″ X 20″ 42″
    143-152 159″ 45.5 6″ 546 682 910 26″ X 21″ 56″

     

    Saddle Footprint=5″ wide x 28″ long

    Bags of (100 lb.) Filter Media Required by Filter Model
    Filter Media 143-56 143-71 143-87 143-105 143-124 143-152
    Bottom Layer, 1/4″x1/2″ Stone 4 5 6 7 9 11
    Second Layer, 1/8″x1/4″ Stone 3 5 6 7 8 10
    Third Layer, 6-20 Sand 3 5 6 7 8 10
    Top Layer, 20-30 Sand 15 20 25 30 36 45
    Total Bags 25 35 43 51 61 76
  • ImageTitleFile TypeFile SizeDownloadDateCategoriesProducts1234_hfilter

    143 SF Operations & Maintance GuidePDF4.4 MB

    Download

    , operation-maintenance-manuals

    Single 143 Filter DimensionsPDF57 KB

    Download

    , drawings

    Stacked 143 Filter DimensionsPDF66 KB

    Download

    , drawings
  • 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.

     

    Standard Features

    • 16 sq. ft. – 45.5 sq ft. surface area
    • (2) tank support saddles
    • Manufactured with a minimum wall thickness of 0.3”
    • 50 psi working pressure with a safety factor of 4 to 1 and tested to 75 psi
    • (1) 12 X 16 gasketed man-way sealed by internal pressure
    • 4 to 6” sch 40 PVC slotted under-drain headers
    • 4 to 6” sch 80 PVC underdrain header with laterals
    • 4 to 6” sch 80 PVC inlet header with diffusers

    Optional Features

    • Multiple Face piping configurations
    • Stacked or side by side configurations
    • Custom Configurations

    To receive cad drawings, quotes or additional product information please contact us.

    Industry leading 15-year warranty

Call Us

Meet Us

MER-MADE FILTER, INC.
11746 Charleston~Augusta Road
P.O. Box 306
Denmark, SC 29042
sales@mermade.com

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