black algae in grout had this problem last year, had pool cleaned and regrouted, it has returned... whats best way to cure ??

i need help to get the green to go away i have an 18,000 gallon pool can you tell me what i have to do to clean it. :(

hi 18,000 gallon pool and it is green can you tell me what i i can put in it to make the green go away i need help i know how to make the cloudyness go away

I have a 12000 gal inground salt water pool located in Phoenix. My water chemistry is good per the pool store tester, and the water is clear. However, I am getting a...

I've been trying to fight off what I thought was algae for about 2 weeks now. It started off with a little on the bottom and sides of the pool and we thought we killed...

please help! we put in new liner this year and filled pool with water from ground water source that we have used before to partial fill after winter. Pool was a little...

Ok here we go. New pool,only up for a week .Added 2 chorine tabs to floater and 1 to skimmer . Had water tested, showed very low clorine level almost at zero. Alkalinity...

water in my pool is cloudy and smelly /citron like/ what it is ?????

We have had a green pool since July 5th, minimal changes.

24,000 gal. in ground vinyl liner cartridge filter.

Color is green, can't see bottom, walls are NOT slimey...

The pool water is cloudy. I can't keep the algae from growing on the sides and ladder. I keep adding chlorine but every time I test it shows no chlorine in the water!...

I have an above ground easy set pool with the salt water filter and the pump for the pool went out so the pool went about 2 days without a filter and when we got a...

white cloudy slime floaters, looks like snot what kind of algae is it. 15,000 gal salt fiberglass pool. cannot keep FAC above .05 or even zero. CYA 80 to 100ppm...

I have a small amount of sand blowing back into the pool through the eyeballs (don't know the correct name). Why is this happening and how do I stop it?

We just moved to a new house with a pool which was filled with dark green slime and leaves. We drained the pool, cleaned it out and filled it. We added some powdered...

Two days ago I had an algae bloom. I shocked and shocked, brushed, and brushed, vaccumed and added an algaecide (sp). Now the green tint is gone and I have a milky...

Help, I have a fibreglass inground pool that has a white coating of what I assume to be calcium caused by the very hard water in this part of southern spain. I have now...

I am a first time swimming pool owner. My water is crystal clear, but chlorine levels have been low. I vaccumed tonight and wall on far side was kinda slick so I took a...

We tested our above ground pool after clearing it of Algae. The water is still cloudy. Our test strips say that the TA is high and the PH is normal. How do we lower the...

Suddenly after leaving our pool covered for 2 days as it was cooler we open our pool and help! its green and cloudy. I think it is mustard algae as it is very fine and...

PH and alkalinity within ok range. I put in shock and hour later added algaecide but it's 24 hours later and no change

any suggestions? Is it safe for me to swim?