I need to change some water to reduce the CYA from ~100 to maybe 50-75-ish.
I put the hose into the deep end of the pool. Hose has the nozzle on it, so it ran sort of slow, didn't find the wrench to get the nozzle off so I left it on. After about 3 hours it had risen 1" to the bottom of the overflow grate. After 6 hours it was at the top of the overflow grate. I guess the overflow is not working -- why would that be?
I was not the homeowner when Hurricane Ike roared through, but my daughter did drop by the home and said the pool was nasty and green and full of debris. No power for several days in that area I think. A week later when we were in town, it was all cleaned up. But, I do suspect that debris got into the overflow.
So, what do I do about it? Continue to fill the pool up to overflow and hope to pressure the debris on down the line? Call "someone" to do "something" about it? Hope it decays and goes away in time?
And, how big a problem is that? If the pool is full to above the overflow is some sort of nasty stuff communicating with my pool from the sewer?
Should I test what happens should the pool actually overflows? I cannot really tell where the water might go, there is a swale full of boulder rocks that may be designed to carry the water away from the house, though the yard generally slopes toward the house. Without running a spirit level I am really not sure how the yard slopes. It is a lot at the end of a cul-de-sac and is diamond shaped, with a mostly square house centered, the pool centered behind the house. The likely water path from the pool to the street is quite narrow as the house fills the lot at that point.
Fortunately, the season for Big Rains is past, but Houston can get 10 to 15 inch rains from time to time and by next spring I will need to be certain that the pool can take a hard rain of several inches without endangering the house.
Anonapersona, The Woodlands Texas