High alkalinity and calcium levels are much trickier to resolve than the pool books indicate
HOWTO: Step-by-Step Guide to lowering your alkalinity The HOW-TO has moved here: lowering-swimming-pool-alkalinity-step-by-step.html You should...
Should I be concerned with a CH of 100 in a fiberglass pool? FC 3 Ph 7.4 TA 120 CYA 40 TDS 500 water is perfectly clear although I have...
I have a small (7000 gallon) fiberglass pool with sparkling clear water using BBB method FAC 5 PH 7.6 TA 80 CH 120 CYA 50 Went to Leslie's...
I finally have my new testing kit (K-2006C), and I am enjoying revisiting basic high school chemistry labs. Most of my numbers are good (see below)...
I've read on a few sites that adding TSP (trisodium phosphate?) will lower the calcium hardness in a swimming pool but I haven't found any clear...
I need to add calcium to our pool and I think I need to do it soon. (concrete/plaster pool Calcium level at 100) I have been keeping my chlorine...
Hi All! I really hope this is an easily answered question...My hubby took off our cover this past Wed. night, we planned on doing this on the...
I got a sample of fill water from a friend to test for iron. I ran a full set of tests to see where he would be starting. Here are the results: pH...
Ok...so I have a 2500 splash pad (slide, water features). For the last couple weeks I can't keep my alkalinity up. I am continually adding alkalinity...
15,000 gallon IG plaster Alkalinity here is naturally high out of the tap, pool tested at 220ppm. Their test said pH was 8.2, all mine say it's...
This might help to start off knowing your water. 'Hardness' is related to calcium hardness and alkalinity. We recently moved west about 90...
We bought a house w/pool in April. The previous owner left some surprises, one of which is a bucket of chemical without a label. It's a white plastic...
I used the aeration method to lower alkalinity from 230ppm to 90ppm. Although the amount of acid now consumed has dropped a lot, the pH insists on...
Is there a relatively safe way to precipitate calcium and magnesium out of the water? My fill water is very high in both and I think it's causing the...
The procedure for lowering alkalinity results in higher total dissolved solids (TDS). Probably not an issue with pools, but I'm using the technique...
Is there a household chemical I can use to increase water hardness?
To lower my ALK can I use my spill over spa in Spill over mode ? (Not recirculate in the spa) It has 6 jets that can bubble a lot or does it need...
We had a monsoon that flooded our pool, so it took a couple days to get it back in order. I have been taking daily readings and noted that CH test...
Several months ago we moved into a beachfront house with a VERY large pool--about 33,000 gallons. I have been maintaining it. It tends to prefer a...
I have a round 24' pool 52 inches high, with a hayward gas pool heater,hayward sand filter. I use a lamotte pro 9 test kit. I had some mustard algae...
Hi all, My calcium hardness has almost been around 150. We recently had a weeks worth of rainy weather. My pool water got cloudy shortly after....
I have an inground, vinyl liner pool (new liner last year) without a heater. I just had my water tested. Everything was OK except the TA measured...
Hello all :) Great forum! New pool owner. I'll save my questions for after doing some reading first. Just wanna say thanks for having a great...
My ph was low (a constant problem), reading below the minimum 7.0 on my Taylor test kit, so I added a box of Borax. This created a little cloudiness...
Just recieved my new kit which includes all the important test, so I was able to do the whole spread: FC= 2.4ppm CC= 0.0ppm TA= 110ppm CYA=...
When I try to hold a TA of 80, my PH tends to rise faster requiring more frequent acid applications, which brings the TA down to around 50-60...where...
I'm having some difficulty cleaning some very VERY stubborn calcium tile staining emanating from a rockfall. I used acid, but had to use so much to...
My Taylor book claims if you slug muratic acid in the pool rather than spreading it and splashing it, you will lower TA rather than reducing ph. Is...
Hello. Been a reader here for years but this is my first post. I have a tan colored stain/scale on the bottom of my in ground 25,000 gal. vinyl pool....
Hi, I have a concrete indoor pool with a coverstar electric cover. I have been battling with pool water chem for several months now. My PH is...
Just joining the pool world. Starting with 16ft 48" above ground Intex before we go bigger. Having a tough time bringing the alkalinity down without...
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