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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    well i got it! right before the pump basket there is a valve to select the main drain or skimmers or both. well there was a plug on the front the broke off and a small hole was there. i put my finger over the hole and i could see all the way down to the bottom of the pump basket. when i released...
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    that large pipe was hooked to a dial to control the copper or something like that. it was setup and installed long before i took over the pool. how do i know if the sand filter's sand needs to be replaced? i know it was replaced mayber 6 or so years ago. thanks for all your help on this...
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    i do see a few leaks. when the skimmers and drain lines come to the pump, all 3 flow to a manual valve to use just the skimmers for main drian. there is a little plug to the side of that where water is leaking from. also where the pump is banded to the pump basket, it is leaking water at a...
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    Water is flowing back in the pool. it seem the air pressure is building up so great that if the pump it cut off and the pressure does not get released all that pressure is send backwards throught the pump back in to the lines going to pull. when the pump is turned back on after that happens it...
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    i release the pressure by opening the pitcock valve on top of sand filter. at the top of the sand filter i have a T that goes to that pitcock valve to release pressure and the PSI gauge.
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    1 - max PSI is around 30-35 2 - havent tried yet, will try this afternoon i did replace the oring on the screw on top off the pump filter basket i ran it all night and this morning didnt take as long to release the pressure. i also noticed that where the metal T comes out the top of the sand...
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    Sand Filter Building Pressure -Just Replaced Vari-Flow Valve

    i have a 40,000 gallon backward L shaped pool. has a skimmer in shallow and deep ends & and a drain at bottom of deep end just replaced a bad vari-flow valve this year and had no problems except for air pressure building up in sand filter. i have worked on the pool for years and never had it...
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