hello all, first post on this board.
Now down to brass tacks. My mom has an inground pool, approx. 20k gal, built in 1985. The last couple days I noticed it getting greenish so applied proper chemicals to readjust and clear it up, however to no avail, just got darker and darker green. Today, wake up and look outside, the pool went down over 8 inches overnite!
The quandry is there is no evidence of a leak, the ground is not wet anywhere, that much water and you would think there would be some kind of sign...unless the main drain is leaking all the water underneath or a drain line or something under the pool???
It's not the return lines because they are now above ground since the originals froze up about 10 years ago and they are fine.
Could the green color be the fact ground water is getting in? The shell has no cracks that are evident.