Forum: Testing and Adjusting Pool Water Chemistry

Can you swim safely with a cl of 9.0fc and a cya of 30-40 ppm? We had a heavy use yesterday and I put in some bleach thinking the pool was going to...

My test kit (Leslie drop) gives a table for lowering pH with Muratic Acid - 20 Baume; what the heck is 20 Baume?? thnx Mike K

Could someone direct me to a website that sells a testing kit for salt levels in a pool? The info would be greatly appreciated. We are going to buy...

Hi, I'm new here and , of course have a problem. My TC is a little over 3, pH 7.2, calcium 30, TA is 240 and water is cloudy. How do I fix...

I have the regents to test chlorine but need advice?

I see the term CYA used a lot. What is it, and why is it so important?

Hello everyone!! I am a Baquacil to bbb convert and had ordered some test kits from Leslie's via internet. Someone screwed up and sent me 3" jumbo...

I was just wondering. I have had my pool one year and luckily no algae yet. However, I am not sure I would know if I was close other than looking...

Trying to get an understanding of bleach vs. shock. I use both. Does that make sense. Actually I use bleach, shock and pucks in my chlorinator. ...

Just had my water tested at the local pool store. These are the results: FC = 0 TC = 5? (he put an arrow pointing down after that?) pH = 7.2...

My PB gave me a Pentair test kit, which tests for FC, TC, ALK, CYA, and PH, and Calcium. It has the test tube thingy with the color comparison...

how long do I wait after using acid to bring dowm PH before shocking

I have a 24' round vinyl liner pool and my PH is 8.2 > the pool store told me to put in 1 pint of acid . Does that sound like enough. That stuff is...

I currently own the PS233 kit, but I have run out of chemical for the CYA test. Yes, my PS234 kit is ordered (preordered on 4/5 in fact) but still...

Just had my water tested at the local pool store. "Jr." wasn't interested in any of my numbers but the Phosphates!!!! I, on the other hand, just...

I went to the pool store today and had my water tested. A few days ago I had my pool drained, filled, and a swg added. The salt level on the...

My PH is 8.2 and ALK 90 that is not good for an AG vinyl liner but what I need to know is do I adjust the PH or ALK 1st ? Is it baking soda that...

Im confused about pH testing. Do I add sodium thiosulfate to the sample or not? There is a big difference in results depending on what I do. Thanks

I have a 12,500 gal inground vinyl pool with sand filter, just opened 3 days ago. A little dirty at first, but looks great now except for some algae...

Good morning everyone. Hope you are doing well and are enjoying your pool. It is plenty warm in the Fort Worth, TX area to swim these days. We are...

after you add chlorine how long should you wait to test for it?

I'm hoping someone can help me! This is my 4th Season and you would think I could get me chemicals straight, but with every other pool store telling...

:) Hi...I'm new to the forums and am very happy to have learned alot by lurking around. I do have a few questions though...First let me tell you...

Hi everybody just starting with my first season with my, last fall finished, 22K IG plaster pool. Cartridge filter and SWG. We opened 6 weeks ago and...

First off let me say thanks for your help on other pool issues. You guys are great! My new problem is that our 30' AG (20000 gal) pool has turned a...

Does anyone know where I can find more info on the Pinpoint computerized water analysis system. I've been trying to find more info about this tester...

I tested my water this morning: 18000 gallons, gunnite pool/spa combo w/ aggregate finish FC 1.0 CC 0.0 Ph 7.8 TA 90 I have to assume the...