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When the PSV Valve is set to close the cleaner (to run the skimmer) when I turn on the pump the filter pot begins to fill with water then it recedes to empty. This continues indefinitely, so that I can't use the skimmer setting. When I set the PSV valve to close the skimmer (to run the suction...

I have a 17,000 gallon plaster pool. The Chlorine level is 3.0 (I use trichlor pucks), PH is 7.6, TA is 65, CYA is 45. My problem is I can't keep my calcium level above 200. I keep adding calcium chloride to the pool. It raises the calcium level to about 205. Within 2 days I'm at 190, and it...

As history, I had my pool re-plastered in December 2016. For the past year or so, my PH would increase consistently .1 every day. About a month or so ago I emptied half of my pool water to reduce the Calcium hardness to 325 and the CYA to 55. To try to keep the PH more stable, I increased the...

I'm going on a vacation. I plan to shock my pool to 11ppm from where it is now so that the CL will not drift too low while I'm gone. The Pool Calculator says I need to add 169 oz. to raise the CL level to 11. Can I do this all at one time, or do I need to do it over a couple of days? Thanks, Mike

I need to do a partial drain of my in-ground pool. I am not able to use my main drain for this purpose (main drain is not functioning), utilizing the waste valve setting on my filter. I can set my valve to either close the skimmer or close the suction side port that I attach my Hayward cleaner...

I need to do a partial drain of my in-ground pool. I am not able to use my main drain for this purpose (main drain is not functioning) I can set my valve to either close the skimmer or close the suction side port that I attach my Hayward cleaner to. So either the skimmer is drawing water or the...

I need to do a partial drain of my in-ground pool. I am not able to use my main drain for this purpose (main drain is not functioning), utilizing the waste valve setting on my filter. I can set my valve to either close the skimmer or close the suction side port that I attach my Hayward cleaner...

My 16K gallon pool's PH rises a little each day. I am constantly having to add muriatic acid several times each week to keep the PH at the proper level (7.4 - 7.6). However, this has caused my once very high TA to drop to 70. If I add baking soda it will raise the TA but my PH rises as well. My...

Recently retired, I have taken over the pool maintenance responsibilities from my former pool man. My pool was replastered about 5 months ago. It has 15,000 gallons and a 3/4 hp pump by Pentair. My pool is clear, and all chemicals are in the acceptable range except for the TA. My PH had been...