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    Safe to swim once below shock level. Source?

    First off, I've been around here for a couple of years and this site is BY FAR the best place to get great info regarding pool care! That being said, I've seen the recommendation regarding maximum safe FC levels used quite a bit - that being it is safe to swim in a pool once the FC level has...
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    What the heck got in my pool?

    Just got back from a 5-day vacation where a friend was house sitting and performing all of the daily pool maintenance duties (add bleach to the Liquidator, watch water level of pool, empty strainer, etc.). Received a call from him during the 4th day saying that the pool was really cloudy. The...
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    Filter clogged? HELP!

    Last night, I noticed that the return flow was somewhat diminished, so I decided to backwash my 200# Hayward sand filter with spider valve (my pressure gauge is broken and I haven't replaced it yet :oops: ). I set the valve to BACKWASH, turned on the pump, and nothing happened. I then set the...
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    Old solar heater leaking. Fixable?

    I bought a house last year that had a pool with solar heating. I noticed last year that the fittings between them appear to be leaking, but I just dealt with the water loss. Now I want to see if I can fix them. The fittings appear to be copper and I may just be able to take a wrench to them...
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    How long for CYA to degrade?

    Only about a month and a half ago, I had a CYA level of about 50, but now is significantly less than 30 (I can still clearly see the dot after filling the tube when testing using the Taylor K-2006). I backwashed a few times during that time and did not experience much splash-out or carry-out...