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Does anyone use Amazon to order chemicals, especially chlorine and acid? If so, I would appreciate your recommendations! My small, local hardware store is closing and since I can't support them anymore, I might as well take advantage of that Prime account... Thanks in advance!

Two weeks ago I replaced my filters and had crystal-clear, balanced water. Then, after a weekend of heavy use, the pool started turning cloudy. Running the pump several additional hours a day did not seem to help and instead the pool became cloudier and turned green. Having come to the...

I've been successfully managing my pool chemistry for about two years now, but over that time I have seen my TA drift lower and lower... I think I'm now out of range. Here are my most recent results: FC 3.2 CC 0 PH 7.4 TA 30 CH 250 CYA 30 Is 30 just darn low for TA? Two years ago it was at...

I am in need of help in diagnosing the cause of weak water flow. About two months ago I cleaned my filter assembly, after which I noted two things: (1) my flow increased somewhat and (2) the air relief valve pressure indicator on top of the filter went from 20 psi to zero. Since then my flow...

About two months ago I disassembled the filter chamber on my system so I could clean the filters. Before I did the cleaning, the pressure gauge on the top of the chamber was showing about 15 psi. Once I opened it, I discovered that the previous owner had not cleaned it in quite a while --...

Following a water change-out in January to address a nasty CYA issue, I have had a nice chemistry balance that I've been able to maintain using only bleach, muriatic acid and a weekly scrub-down. However, on the most recent test I noticed my TA is now down to 70 ppm. (It's been drifting down...

I seem to be having trouble with keeping my pH in the 7.4 to 7.6 range... I've been adding about 30 to 50 ounces of dry acid every three weeks or so to keep the pH from going over 8. Is that normal? And what might be driving it up? Could the Pebble Tec finish be causing it? All of my other...

I have recently SLAMmed my pool and am now letting the FC levels drop, but I seem to have issues with CC and high pH. Here are today's test results: FC 17 CC 0.5 pH 8.0 TA 100 CH 250 CYA 60 Temp 55F Do I need to address the CC and pH levels, or will they equilibrate as FC drifts down?

Can anyone recommend a weir gate replacement for a skimmer opening that's about 8 3/8" wide and does not have notches at the bottom? About four months ago I bought a Blue Devil B8550 Skimmer Weir Replacement, but it broke and frankly never worked very well in the first place. Thanks in...

I have been trying to more accurately calculate the volume of my pool, which is tough because it has an unusual shape... I had a rough estimate from using the dimensions and various online calculators, but was suspicious of the result. Then it occurred to me that I could use chemistry to...

So my wife and I bought a house with a pool back in August, which is a first for both of us... It's a lovely thing with a Pebble Tec finish, but it's becoming clear to me that the previous owners neglected it, along with almost everything else about the house (that's another story). Anyhow, I...