Larry, I am perplexed by my cloudy pool. After getting the water crystal clear after a month of effort, I could not get a measurable free or total chlorine level. I kept...

The pH reading of my facility's hot tub has been yellow for the past week. We thought the acid injector might have been siphonning acid out of the vat and into the hot...

:( :(

My pool has been turning green on the bottom i get rid of it and vacuum on waste then in two days the green is back when i have my water tested they say it is...

Lets say that all of my levels are where they are supposed to be and the water is crystal clear. How many days should I have untill the PH and ALK start to drop?...

My PH has been reading low , I thought I was suppose to keep my TA @ 100 but the pool place told me to raise it to 130-150. I did not add a lot of TA but in adding it my...

Pool store said to add 1/2 gallon of MA to pool at a time. Your saying not more than 2-4 cups then wait 3 days. I have about 4 gallons in my 13000 gallon pool. Help.

Hi all, first post here.

Another Alkalinity question for the pros.

We have a 30' above ground.

Filled with well (hard ) water last fall.

Prepped it for winter and...

We have just set up our up ground pool and the water looks greenish colour. We have very hard well water with alot of iron. We have an 18' X 48" upground liner pool...

hello i have a inground 11000 gal saltwater pool and my alk is around 180 ph 7.8 total clorine is ok and so is free clorine i bought some ph minus sodium bisulfate and...

I have a fiberglass pool. This is our second summer and there is a stain in the pool. Around the edge and basically all over. It is a light brown color. I have tried...

Last year my gunnite pool was renovated. Copings repaired, new tile and dark grey marble dust. In a short time 2 large pieces of the new marbledust separated. At the end...

the wife and i both "shocked" the pool, now ph tests are blue, what do we do?

I have an inground 30,000 gal pool. I've been working it for days to get things right. My TA is 190ppm and my PH is 6.8. To lower the alkalinity, I pour muratic acid in...

My alkalinity is at 188ppm I was using the calculators to calculate how much muriatic acid to use and to with a 14,000gal pool to drop the alkalinity 90ppm it said to...

I just purchased a new house with a in ground kidney shaped pool, old but in great shape.

My neighbor helped me open in up for the first time, it was light green and...

Hope someone can help...so confused! We have an metal frame pool, about 3800gal. Have had it up for about a week and have been trying to adjust TA and ph with ph Minus...

I have a sand and swim pool it's 15x4 and holds about 5000 gallons,

I am so confused about whats first, second, third.

At this point I have bought a new DE filter pump...

I've got a 17,000 gallon gunite pool. I recently had a high Ph (8.0) along with high TA (140). The result was dropping the calcium from the H2O. I added 1 Gal of...

I just used your calulator to help determine how much muriatic acid to add and it said about 1.5 liters. Do I do it as an acid "shock" and put it all in at...