green water or green liner?

[denanbob]

Here were the numbers today (sorry don't have the fancy test kit):

Chlorine - 5
PH - 7.2
Alkalinity - 170
Calcium - 200 (I know this doesnt much matter for vinyl)
CYA - 0 (can't understand this because I used trichlor tabs all last summer)
No phosphates

I just added 1.42 gallons of 6% Clorox. I also tried the Vitamin C tabs and that did nothing against the liner.

[Watermom]

Does the liner feel slippery or slimy at all?

[aylad]

Have you added anything containing copper to the pool? ( Algaecide, pucks containing copper, etc).

Janet

[madwil]

the CYA deteriates over time, there is a bacteria that "eats" it, and produces tons of ammonia...
You really need a test for FC and CC; you probably have lots of CC which will go away with time (FC and UV get rid of it...)
with your chlorine at 5, we don't know from strips if it is 5 or 5+ and how much is CC and whether you lose any (if it is still 5+, we don't know how much +) so can't tell about algae and such.
take a water sample to pool store, if you can, and get a full test including metals- Cu can sometimes be green just like algae

[denanbob]

I did have it tested at the pool store and those are the numbers they gave me. They don't test for FC/CC's (eyeroll). I use a drop based test kit from WalMart, not strips. I have not added anything containing copper except Algaecide last year before we closed. The sides do feel a tad slippery/maybe considered slimy. I added 3 more gallons of bleach this morning. Here is a pic, hope it works:

[denanbob]

As you can see, the first 6 inches or so are blue but from that point down, everything is green (which makes me think the liner turned green). I just can't tell if the liner is stained green or if the water is actually green (although like I said above, if I fill a water bottle with the water from the pool, it looks clear, not green).

[CarlD]

Usually, I'd say just go with more chlorine, but I dunno. If the liner feels slippery, you are probably fighting algae. But if it's not and "squeaks" against your fingers, that's not it.. I'd have the pool store test for copper and iron, if you don't have your own metals testing kit.

Update: You say it feels slimy. Shock the heck out of the pool and brush it every day. I think you still have algae.

Carl