The only time I know of that walls get slippery with pH above 7.2 is when they're also turning green....

I can't believe they're giving you the runaround. Hopefully they can find the problem and fix it. My Polaris is out of commission right now (need new wheel set and hose, haven't had time to go get them), but the Poolbuster is spoiling me--what a great piece of equipment!!

Janet