I have drained my pool (this past weekend) and gotten the cya down. Two days later the stain is coming back :cry: . I have a fiberglass pool 8100gal with chlorine...

I have a 12,800 IG, fiberglass pool. We have public water. Brown staining along water line developed about 2 weeks ago. Water was clear with a green tinge. We use...

We have an 18 foot above ground with a vinyl liner.

After we finally got the water cleared up and its been crystal clear, there is a light stain on the ladder, entrie...

I installed a new fiberglass pool, 11,600 gallon and filled it with filtered well water. Manganese levels are off the charts at 2.9 PPM (I believe 0.05 is recommended)....

I had a swamp when I first opened the pool. After 2 weeks of hard work, the water is crystal clear and all of my levels are good. PH measured a little low at 6.8 as of...

I have spots on the bottom of my pool that almost resemble sand or dirt that has settled. These spots cannot be vaccumed or brushed away. Any ideas?

I have an above ground pool,16x48 round.I started the season with Baquacil, but had nothing but trouble. After the pool developed the second round of algae, I had had...

I have a new pool that has brown stains between the tiles that are rounded in shape. Also the plastic covers on the bottom have turned brown along with the grout between...

Does anyone have any idea what could be in the bottom of my pool that is fine and grainy? I have a salt water pool and this is the first summer I have used it. I thought...

When my pool was opened up this spring the service person inadvertantly connected the filter wrong and the de went into the pool. The pool has a light brown stain. Was...

I have a 15 x 30 vinyl liner pool that is only 1 yr old. It was opened in April this year and I had no staining when opened, or after I added approximately 800 gallons...

I'm trying to determine if the brown stain in my spa is algea, iron, or what ever. The stain formed while the pool was closed and no water was in the spa. Last winter...

got an inground pool with fiberglass stairs, problem is they turn orange/brown and i have to clean them probably once a month. the only thing that even come close to...

My PH is a little low, and I was showing no free chlorine, so I just added 2 pounds of chlorine-free shock (don't remember brand name), as per the instructions from the...

I have a 45,000 gal. inground plaster pool. I have a light brown stain that is starting to form on the bottom and sides. I covered the pool for the first time this year...

15 foot above ground vinyl pool (5000 gallon)

I use Pool Time test strips with the following readings:

Total Hardness: 250 (OK)

Total Chlorine: 3 (OK)

Free...

I have a inground pool that is a liner pool, 16x33 and it is 8' deep. The pool water is Lime Green with a little bit of dullness to it like it is cloudy. We have Shocked...

We went on vacation and treated the pool prior to going and then we returned we had this beige color stuff all over the pool liner. We have already talked with the pool...

I have a new pool with a starting alk of 450ppm( holy thats what I said but had it checked over and over) any way after a week of adding acid I am noiw in the 200 range...

I have well water which I very very rarely use to top up the pool, because of iron in the water. I use rainwater instead. I've been doing it this way for years. But this...