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I replaced this Multiport valve ( the old one lasted probly 10 years. Anyway, over the last several months there seems to be an air leak on the sand filter outlet side. When the valve is set to filter there is an audible "buzz" is the only way I can describe it. After several pump cycles air...

I have been using bleach exclusively for a couple of years and pretty much got everything working right this year. The only thing I have to do besides keep the bleach adjusted (I have made an automatic bleach dispenser) is keep track of the CYA and the Ph. It seems that I have to add muriatic...

I am building an automated bleach dispenser. I need to know what is a range of suction pressure (vacuum - PSI or whatever) for a 3/4 pump would be? Would a -30 - 0 in HG vacuum gage on the suction side of the pump give me a good number?

I'm having problem getting concentrated bleach for my pool here in the Lubbock, Texas area. WalMart has had 10% bleach for a good while but all of a sudden is out of stock. Home Depot and others have 8% bleach. Are there other sources?

13,000 G, plaster pooi, liquid bleach (first year), CYA-50, PH 7.7, TA 180, CH 220, FC 10.2, CC 0.2. I started out slamming at FC-10 earlier in the year, maybe didn't get slammed cause going back and reading SLAM recommendation of FC - 20 if CYA is 50. Back then I must have been getting a...

I have had high CYA levels and have gone to liquid bleach. In the mean time I was going to get the CYA levels corrected when I started up the pool this year. I have the suggested Taylor test kit (FAS-DPD chlorine with R-0013 CYA reagent)and thought I would check the CYA levels to see where I...