United Support

Recent Topics
The effects of adding calcium to a Swimming
Using calcium chloride flakes - when I add it to a swimming pool my chlorine level goes to 0 And I find that it’s very hard to get my chlorine level back up, usually I have to shock the pool or even put more than a shock treatment, not sure why this is happening. I take care of 10 commercial condominium pools and I added calcium two 4 Pools and all 4 Pools within two hours the chlorine levels dropped to zero??
Fiberglass Pool - Should I use Nor More Muriatic Acid to Lower ph?
I have a Fiberglass Pool - Should I use Nor More Muriatic Acid to Lower ph?
Heavy scaling
i have a 20,000 gallon pool. 15x30 and 4-10 deep. The pool was abondoned for quite some time and there is a lot of scaling or calcium buildup. It’s everywhere in the pool and is sharp enough to cause scratches whenever my kids brush up agains the side and stairs to quickly. I tried a blue pumice stone and it last for about 10 brushes back and forth until there was only 1/4 left. I did a little research and I think I need No Dran acid wash. I have never owned a pool. It said to put and oil based
White water mold in pool
Does anyone know how to get rid of white water mold in a pool? We use Baquacil, so any products we use must be compatable with Baquacil. We have a 15,000 gallon above ground pool with a cartridge filter.

Popular Articles
I used No Mor Problems and my pool can't get a chlorine reading.
No Mor Problems can sometimes interfere with chlorine readings. If that happens, don't shock. Just chlorinate as normal until the reading returns. It can take up to two weeks for chlorine readings to fully stabilize. You will not grow algae in the ...
How long do I wait after using Pool Stain Treat to go swimming?
After using Pool Stain Treat you should wait 1 hour before swimming.
Hamilton Index
The Langelier Index (LSI) Wilfred Langelier developed his breakthrough index in the 1930’s as a means of predicting calcium solubility in water pipes. The challenge at the time was scaling in municipal pipes which would impede water flow. Wilfred’s ...
Cyanuric Acid, Chlorine, pH
Cyanuric Acid Cyanuric Acid is a very weak organic acid with the following chemical structure: [C(O)NH]3 It is triazine, consisting of a ring of 3 Cyanic Acid [CONH] molecules. The hydrogen atoms shift positions, causing the molecule to exist in 2 ...
How long after using Pool Stain Treat do I wait to raise the chlorine level?
After using Pool Stain Treat and the stains are gone you can raise your chlorine. We don't recommend you shock, but rather increase your amount of regular sanitation to slowly raise levels back up and avoid stains from returning.You can find more ...

United Support | Home