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found a Circupool SJ-20, $509, it's oversized, so how do I know how keep the level of chlorine correct? How much salt to start?

I found this one but not much info BLSW 10 only seller is Ebay, kinda strange I see smaller units but says only above ground pools, what's the difference? Tryiing to stay under $500

I have a dosing type chlorinator works fine, just want to upgrade to a SWG, looking online they all are much larger like for 15-20,000 gal any suggestions model make ? I'm in FL using solar in cooler months Does it matter if it is plumbed in before or after the pump, or horizontal/vertical...

I have small pool about 4,000 gal it has an old pleated cartridge type filter on it which needs to be completely replaced. Should is be replaced with a sand filter or another cartridge type? Hayward S166T Pro Series 16-Inch Top-Mount Pool Sand Filter or Hayward EC40AC Perflex...

Ok, I see the O ring, thanks very much. Now it's EZ

ok, thanks, but does the water temp probe need to have a hole drilled into pipe or just surface contact outside the piping?

Does it matter where I mount the one on solar panels? is better to mount on the cooler side going in or the hotter side coming off the roof? the other I assume is mounted by the pump. I didn't find any instructions

I have a fiberglas pool and I'm seeing a dark color waterline ring. I'm scrubbing but it still remains, the source water is filtered thru carbon at 5 micron, so it not the source. What's the cause? What to use to clean it off?

I have a 1 1/2" female bulkhead fitting that is unguarded. I was trying to located a screen cover that would thread into it. it is near the bottom on the sidewall.

Mystery solved, one of the panels has leak, early in the morning I see a drip under one of them. I guess in the heat it evaporated before I could see it. I'll flip it over, I was told a few golf tees and silicone works. any better ideas? thanks for your help

right now w/o temp controls the pool is hitting 100 degrees??? So the flow rate must be working, not 100% sure, I have some flow meters I was going to add, that's the only way I'll know for sure. But if it's not enough, where can I find booster pumps that may work? Ike have any suggestions?

good idea to test it, I'll try that. the small pump is not high pressure, I intend to paint all of them, UV breaks the glue in joints if not painted. what other type of check valves are there? the ball valves are only temporarily until iget the bugs out then add the electronic ball valve...

no they go all day

vrv in first pic just below roof bubbles in 5 minutes

Ok, did it all in 2", runs great in few hours the temp got up to 88. I see bubbles in the pool return outlet's, flipped the valve to shut solar loop gone. I can hear a lot of water gurgling on the down stream pipe, I installed a drain for the winter on that drain side, opened and water...

Ok, did it all in 2", runs great in few hours the temp got up to 88. I see bubbles in the pool return outlet's, flipped the valve to shut solar loop gone. I can hear a lot of water gurgling on the down stream pipe, I installed a drain for the winter on that drain side, opened and water...

the pvc from the filter to the roof should I be using 1.5" or 2" the panels are Fafco's look like 2" manifolds I assume 2" has less resistance

ok, sound like a plan thanks

Ok great that helps. I thought once the temp hit's it set point and the solar valve closes, the water in the panels now not moving would heat up and build pressure requiring the need for a pressure relief valve?

Ok I have vertical pipe going to roof panels this branches off with valve to bypass back to the pool. I was going to install a vacuum relief valve about 5' above that branch leading to the panels. I also have a pressure relief valve where does that go in the system? I assume I need 1 or 2...

So it can't warm up the water through the cover then, kinda what I thought. tks for confirming that

During the day should I leave the cover on if the temp is higher than the pool temp? Or will the water get warmer with or thru the cover? I've been rolling it up each morning & covering at night.

great system, cost was about $60K they said, nice work.

I'm using 114 watt UV at 18gpm, on about 4500 gal