Crazy Numbers!

[CarlD]

OK.
Post
FC
CC
pH
CYA
TA
Calcium

What are the KNOWN dimensions of the pool? From that a rough calculation of the cubic footage can be made. Every cubic foot is 7.48 gallons, so when you know the cubic footage, just multiply it by 7.48.

You CAN manage a pool with CYA=150, but you need to run it with FC in the 8-15 range and shock to 25ppm.

It SOUNDS as if you and your friend need to follow the plan to clean up a green pool. That means buying lots of bleach or liquid chlorine, shocking that pool up to 25 ppm and checking it 2 to 3 times a day, adding more bleach as needed to keep it at 25. Plan on doing this for a couple of weeks. Brush and vacuum daily (that's when you LOVE your robot aquabot, blue diamond or dolphin, because they do both).

Add lots of P.O.P.P.--Pool Owner Patience and Persistence.

You CAN drain half the pool and refill to get CYA down to 75, but you'll still be fighting the contaminant, so you might as well kill it now, first. Then partial draining and refilling won't be an issue.

Poconos has a trick to allow you to replace ALL the water--you get rolls of industrial-with plastic wrap (like Saran) and cover the pool. As you drain, fill on top of the plastic. This keeps the two waters separate, without allowing the liner to come loose. In a concrete or F/G pool in wet ground, it keeps it from floating out of the ground (bad, very bad!).

Keep us informed.

[waste]

Hal, hope you are doing well. From what you describe on the alk test the pH is well below 5 (If I remember chem-geek's post, the reagent turns from green to red at a pH below 3.5 (though it MAY be 4.5) -either way the pH HAS TO BE BROUGHT UP!!!!!

Hope you can help your friend! (ps, how's the church pool doing?)

[Sumo1]

Thanks, gents. I'll get over there tomorrow and get more complete numbers to post, maybe tonight but not likely.
Waste, thanks for asking about the church pool. I'll need a lot of time to get you updated (slow typing) but, weather permitting, plaster will be applied Tuesday and Wednesday. Regards
Hal