I made a mistake and added acid to the spa before I checked my alkalinity. I knew last week that the alkalinity was barely at 80. So when I added the acid I freaked out....

can you use phosphoric acid for a pool and how much would you use at any time?

Any suggestions? Was using Clorox but got tired of lugging those bottles. Now using 60% Duo Clor as I dont want my CYA level to climb. Trying to get CYA down to 50 and...

I think as a lot of people do I understood this question until I thought about some history. And made some enquiries and asked myself a question.

The question I asked...

4' x 15' above ground pool.

I am at a loss, every time I try to balance this pool it goes totally wacked,

Free Chlorine - 10/20
pH. - 6.8
Total alkalinity. - 40...

Hi, I have an 18,900 gallon in-ground fiberglass pool. This will only be our 3rd full summer since having the pool installed. This season we have noticed a smell any...

Moved into a new house with a salt water pool. 12,000gal. Hayward aquarite controls with T15 cell.

Pool turned green after a few days. Control panel indicated "no...

My pool has cyanuric acid of somewhere between 60 ppm (pool store measurement) and 80 ppm (my measurement). This is making it hard for me to keep the chlorine level in...

Hey everyone I am brand new to the forum so thank you for taking the time to read my post.
I just bought an older house with a pool. The lady that owned the house before...

Hi,

Im in Portugal. My pool is 3.5m x 9m and is 1m deep at the shallow end and 1.65m at the deep end. I used a pool volume calculator and it said my pool was 10900...

Hi, this is my first post here. I’m very confused..
We bought a house with a 6yr old free form concrete pebble tec pool approx 11,000 gal with DE filter.
My strips kept...

I have been using Blue-swimming-pool-paint.Renew and protect your masonry swimming pool. Swimming Pool Paint is the perfect solution for decorating and waterproofing...

I have been bitten several times by bugs or insects in my outdoor pool. Size 24 x 40. Some look like flying ants. Others are very small black bugs that have a pointed...

I have a small above ground swimming pool that we purchased this year (13x4 ft). Our pool turned green so I went to the local pool supply place and was told to shock the...

I have been having this problem just Lately checking my pool water, Mind you I have been checking pool water for at least 25 years that's how long I have owned pools. I...

Hi all,

I am closing my pool for the first time on my own (used a couple different companies in the past, both which I wasn't happy with, so I decided to do it on my...

Hi guys,
I have an inground vinyl swimming pool in my home and I’m looking for the pool closing ideas. I’m not draining the pool completely because a small proportion of...