Calhypo and a cloudy pool.

[Octavarium]

I unfortunately didn't close my pool properly last fall and ended up with a beautiful dark green pool this spring.

I managed to balance it with a Ph of 7.4, TA 65, CYA 40 and CH of 80. FC and CC were initially 0.

I've been adding 73% Calhypo to bring up the FC to 16, the CC is now down to 0 from 1.

Now I know you guys recommend liquid chlorine, unfortunately our glorious province is currently in curb side pick up only making hardware stores and even basic stores a pain to shop in. Even the pool store is curbside. Is Calhypo bad to slam with? I have quite a bit of it on hand.

The pool remains cloudy, I've backwashed the sand filter a couple times, but I'm guessing I just need to keep adding chlorine, but don't want to do industrial doses of Calhypo if it's a problem. If it is, I'll try and see what I can order online.

 

[MITBeta]

The only issue with using cal-hypo is that it adds calcium. According to your current measurements, it looks like you have some room in that area.

 

[Octavarium]

The only issue with using cal-hypo is that it adds calcium. According to your current measurements, it looks like you have some room in that area.

Perfect, at this point I think I just have to maintain, backwash and let the filter do its thing. How long can it take for sand filters to clear this stuff up?

 

[MITBeta]

It can take quite a while. Once you pass the Overnight Chlorine Loss Test and low CCs, you can consider adding a small amount of DE to your sand filter to speed things up. Add DE to a Sand Filter - Trouble Free Pool

 

[IceShadow]

Perfect, at this point I think I just have to maintain, backwash and let the filter do its thing. How long can it take for sand filters to clear this stuff up?

You seem to be on the right path. Have you opened the filter and done a deep clean of the sand recently? It might be worth doing if you haven’t in a while. Also are you sure any organic matter on the bottom is gone? That can cause it to stay cloudy too.

 

[Octavarium]

You seem to be on the right path. Have you opened the filter and done a deep clean of the sand recently? It might be worth doing if you haven’t in a while. Also are you sure any organic matter on the bottom is gone? That can cause it to stay cloudy too.

Everything is top notch. The pool store had liquid chlorine, everything's clear, no CC, passed the OCLT. It just needed more time. Also added a skimmer sock, pretty impressive what that thing can catch.

Kids have been in these last two days.

 

[IceShadow]

I use hairnets as skimmer socks.