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I'm thinking I will need to replace the electrode. Can I simply use the next bigger electrode on this thing or are the power supplies rated for each cell?

I've started working on my brother's pool. It sat with no chlorine or filter running for a few days and started turning green. I hit it with shock levels of chlorine and after about 30 minutes I tested for FC and CC and was surprised to find there was no CC. Does it take a while for the FC to...

My brother's got an old sand filter with the push-pull type backwash valve off to the side (Pentair?). The valve is leaking and won't go all the way up to turn it into the 'locked' position. I'm guessing the tank is probably 20+ years old. Its is made of fiberglass and the surface layer of...

Anyone know where I can get them?

My target #s are ~80 TA and ~7.2Ph. I'm having to add about 1 gal. of 34% MA a week to keep the Ph/TA at these levels. The pool was re-plastered in May, so I realize this will create a need to use more acid, but two things bother me. First, the amount of acid I'm having to add has not...

I've got a 1hp Hayward RS-1000 and there's a lot of air passing through the system. I've got a Clearwater C170 chlorine generator and there's a lot of clear plastic for viewing with this thing. There's quite a bit of air flowing through it in the last couple of weeks and the pressure on the...