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I have a pool built in the mid/late 1960's and I was suspicious that my main drain was clogged due to the accumulation of fine sediment on the bottom and no visible suction when the filter was running. So I opened it up, and inside I found probably 6" of grey and black sediment that had this...

... sorry accidentally hit "Post" ... I tried reinstalling, tried Subscribe/restore existing, and App Store says I purchased ,but nothing gets the subscription activated??!! Who do I contact about this? Also, how do I get the calculator measurements in Metric? Tried switching to metric in...

I just installed the app on an iPhone 6s, then paid to subscribe and payment went through but I can't activate the subscription... under About TroubleFreePool.com it says subscription expires January 01, 0001

Found this online regarding the spring as I was wondering the same thing since one of my lights has the spring and the other identical light didn't: "Inside some fixtures you will find a bare coiled spring wire. This is non-electrical but is designed to break a circuit. ... The spring lays on...

Thanks! I think I was subconsciously trying to imitate a pool guy I saw "walking" chemicals around!

I've been measuring out my bleach in a 1 gal jug, then add water to the top, then walk it around the pool. Is this the best way? What about adding near a return like I've read to do with muriatic acid? Any difference? Seems like it would be easier to add to a return and minimizes splashing.

Thanks... I'll buy some CYA and just bring it up quickly. Thx.

I'm doing all my own testing and being as consistent as I can. I'm just surprised to see the CYA going down not up since I've got the tablets in. What I meant about evaporation was that maybe the CYA lowered when I refilled? Anyways I tested pH today just now and it's at 7.5 so creeping up...

I'm having trouble keeping my CYA levels up and my pH down. And want to know best way to add muriatic acid (see end of post). I'm losing about 3ppm chlorine daily and would like to get my CYA up to at least 40-45 to sunscreen a bit more. I'm in southern CA and it's hot and sunny. On 6/7 I...

Hi and thanks for the tips! Things are going well but I'm having really rapid FC LOSS now, and it looks like rapid pH rise too. Here are my latest numbers and what I've added. I took out the pucks/floater last week, but just put them back in tonight: 6/5: FC quick:5 pH: 7.5 FC full test =...

I'm a new pool owner, first post. I can't make a signature since I'm on mobile but will put my specs at the end of the post. My new house came with a 1968 era plaster pool that hadn't had water changed in 15+ years so I had it drained refilled and balanced by a pool company (1 month ago) and...