I am a new pool owner with a 11,000 gallon in-ground plaster pool and a 1 year old sand filter. We have had this house/pool for 2 years now, and though we've never been able to really keep it clear, this year it's at it's absolute worse. (See attached pic)
The pool water is very green and cloudy and has been for several weeks. This weekend, at the advice of a local pool store because of high CYA levels, I drained 1/2 of the water, refilled, scrubbed and vacuumed to waste. The water was better, but the next day I had a fine powder of algae on the walls and bottom (recurring problem), and 2 days later it was totally green and very cloudy.
Yesterday I went to Leslie's and they gave me a bottle of Black Algae Killer and I put in 10oz. and 1lb of shock. No change today. Now I think this was not the right thing to do because it’s copper-based?. I don't know, but if anything it's worse. I've had the pump/filter running 24/7 for 2 days now.
I've been reading a lot on this forum today and have already learned so much - I think I'm ready to go the BBB route and get this problem cleared up. I just ordered a TF-100 test kit from Dave (who was VERY helpful over the phone) and am looking forward to getting started as soon as it arrives.
Here are my levels from the pool store on Sunday, after the refill:
Here is what I could measure today with my old kit:
Any advice and direction would be appreciated for this weekend's "Big Cleanup". I am looking forward to becoming a part of this forum and understanding what's going on out in the backyard
Thanks so much,
Mike - Austin, TX