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The pH in my pool tends to naturally creep up pretty quickly. I suspect that the pH level got pretty high over the winter while the pool was closed and then sat that way for months. I can't be sure though because the pool company that opens the pool for me dumped in some acid before I could...

Thanks, everyone. I'll maintain pH at 7.2, brush often, and hope for the best. What's the lowest pH at which it's safe to swim? (In case I mess up occasionally).

Will this eventually remove the existing scale, or just prevent more from forming? Is it safe to swim in with a pH of 7.2? For some reason I had it in my head that the CYA chart said 10 FC at 70 CYA. Looking again I see that it should actually be at 8 FC. I'll correct this. Thanks! I have...

My pool has developed a rough, sandpaper-like texture on the plaster surfaces that used to be smooth. Correct me if I'm wrong, but I assume this is scaling. I also have white staining on the tile at the waterline. It's a non-saltwater plaster pool using Chlorine. The pool is a couple of...

I've been using bleach to chlorinate our new plaster pool for the last couple of months after reading Pool School on this site. The pool looks great and it seems to be working fine. My pool builder came out today to fix a broken cover and saw my stash of empty clorox bottles in the pool...

Thanks! When I check pH occasionally through the winter how to I go about adding acid to correct it if needed? I assume that with the pump not running the water won't circulate and mix the acid properly, right?

We have an in-ground pool with plaster that was finished about 2 months ago. Due to the new plaster, the pH is constantly creeping up and I have to add muriatic acid every couple of days to keep it down. We're ready to winterize for the season now. Should I be doing any monitoring or...

I'm in Oklahoma too. We've had 100+ degree temperatures for weeks. Today is supposed to get up to 112! It's insane. I've been running the waterfall every night and our water temp is staying around 90. Not ideal, but definitely tolerable.

Thanks for the link to the pool calculator. That gave me some actual numbers to work with. It looks like trichlor would have a minimal affect on ph with the amounts of chlorine I need to add daily. I'll still need to add a lot of acid. I might go ahead and use trichlor just for the...

My new plaster pool is requiring a lot of acid to keep the ph down. I've heard that new plaster raises ph quite a bit. I also run my waterfall overnight to keep the water temperature cooler and I've heard that aeration also raises ph. I add muriatic acid every day, and 24 hours later the ph...

Our new pool has 3 SAVI color changing LED lights. You cycle through the different colors by turning the switch off then back on again. The first color in the sequence is white. One of the other colors later in the sequence is pink. When all three lights should be on white: Two of the...

Thanks a lot!

Pentair pump 1.5 HP Model number 168453 3450 rpm

Thanks for the advice. I've already ordered the test kit recommended here. While I wait for it to arrive I'm limping along with the cheap 4-way kit my PB gave me and some HTH test strips from Wal-mart. I think I have a single speed pump. At least I don't see any way to change the speed...

I'm a new pool owner and trying to get my maintenance routine figured out. I've read Pool School and various discussions on this forum extensively. There are some discrepancies between what my PB is recommending and what this site recommends. Most seem to come down to the fact that I have a...

Great. Thanks!

New pool owner here. My test kit instructions say the pool water should be at room temperature when tested. During the summer my pool water stays around 90 degrees F. How important is it that the water be room temperature for accurate testing? Should I take my samples inside and let them...