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This is an “Unblockable” SOFA.
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Suction cover life is 7 years, the sump wall fitting life is 15 years, the rest of the components have 25 year life, cover and all
SOFA components shall be replaced on or before the end of service life.
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The use of adhesives or other attachment methods that prevent access to suction piping or SOFA components is prohibited.
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Please refer to Head Loss Curve, suction head measured at the wall fitting.
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This is an unblockable SOFA as marked on the suction cover.
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DO NOT USE POWER TOOLS TO INSTALL FASTENERS. Ensure proper thread engagement to prevent cross-threading.
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Ensure proper flatness of installation surface.
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When mud-rings, sump and other components are held in place by the interior surface of the pool, the surface should be free
of deterioration or voids
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Damaged Fasteners shall be replaced with original parts, and must be passitive grade 316 stainless steel. The wall fitting shall
be inspected for the presence of any CRACK or material loss. Cracked/damaged mud rings, sumps, or wall fittings shall
be replaced.
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No unauthorized field modifications.
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This product is intended for use on gunite, vinyl, fiberglass, and roto-molded pools, spas and hot tubs.
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No modification shall be made to SOFA structure or flow path unless the configuration has been certified as a new SOFA.
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Service life begins the month and year in which SOFA components are installed with or without water.
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For winterization remove the cover and plug the inlet.
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Observe cover/grate/fasteners for damage each operational day.
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During installation ensure components and fastener receptacles are clean, free of debris and obstructions.
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Hand-check cover/grate for snugness to the sump/frame/wall fitting after installation.
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SOFA installation components with crack, chunks, or pieces broken off, stripped screw holes, brittleness, and/or unusual
discoloration should be replaced.
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The mounting surface or interior surface of the pool should be free of deterioration.
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Start installation of screws by hand to ensure proper thread engagement and to prevent cross-threading.
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Do not exceed the safe flow rating of SOFAs as listed.
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All SOFAs should be installed in accordance with Waterway installation instructions.
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No modification shall be made to SOFA structure or flow path unless new configuration has been certified as a new SOFA.
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SOFA speficic flow ratings are not to be exceeded while the pool is open.
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The capacity of secondary circulation system (skimmer, cutters, etc) should not be included when evaluating an individual
suction system flow rating.
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For the flow rating for pools with multiple blockable SOFAs in one body of water without isolation valves: combine all
SOFAs, minus the flow rate of one, if all are not equal use the larger flow rate.
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“Blockable” SOFAs in new pools shall be installed in multiple-SOFA system ONLY.
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“Blockable” SOFAs in existing pools with single SOFA systems shall be installed with an additional anti-entrapment device
or system.
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This SOFA shall be used with Waterway sump or with Waterway mud-ring and field built sump per attached instructions.
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Unauthorized field modifications will void certification.
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Cover/grate, including fasteners, shall be observed for damage or tampering each operational day.
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The flow rating for pools with single or multiple unblockable SOFAs shall be the combined flow rate of all SOFAs piped together
on one body of water.
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All SOFAs shall not be located on backrests or seats.
Required Tools:
Philips screw driver bit and torque wrench. Hand tighten screws. DO NOT use power tools. Torque fasteners to a maximum
of 48 in-lb.
