Question about Plumbing
I HAVE A HAYWARD ST180T11580 SAND FILTER SYSTEM .I CHANGED THE SAND IN THE TANK .I AM BLOWING SAND IN TO THE POOL? HOW FAR DOES THE lateral assmebly w/center pegs NEED TO GO INTO THE CONTROL VAVLE ASSEMBLY ?
That placement is automatic based on the center pipe resting on the bottom of the filter tank and the valve being fully seated into the opening on top of the filter and clamped into possition. You likely have damaged laterals and need to replace that assembly in order to fix the sand issue. When refilling the tank with sand, be sure to fill it nearly half way with water before adding the sand.
Posted on Jul 17, 2009
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Posted on Jan 02, 2017
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Usually sand blowing back into the pool is either cracked laterals, a cracked hub assembly (what the laterals screw into) or a bad spider gasket is wrong with pool filters. If you are certain that the laterals and hub are not cracked then I would try replacing the spider gasket.
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