Hi, Greg,

It appears you've got a good grasp of your issues...here's what I would do.

1. Fix the pump....the pool needs a good pump just like we need good hearts.

2. Simultaneously with fixing the pump, I'd get a bunch of Cl in there. Tell us what kind of pool you have before we recommend a dosage.

3. The best fix for a pool with the CYA and CH that high is to drain at least half of it and refill. Test and be prepared to drain half again. That should get your CH and CYA down to manageable levels.

Good work on the pH. As I said, you've got the idea...you just need a plan of attack.