I use 10% bleach that I buy at Lowes, it says it's for pools. Just replaced the SWG a little over a year agoWhat kind of bleach do you use ? How long have you had the SWG ?
Soapy foam is usually the polymers in the fancy bleaches. Or sometimes antifreeze foams in the spring at opening but it's a little late for that.
In low mode, it's running at 1525 rpms. I haven't noticed any air bubbles in the pump basket, but I'll double check this afternoon when it kicks into low mode. I have not added Algaecide for a month now.How many rpms is low mode?
Are you getting air bubbles in the pump basket?
Have you added anything like Algaecide or clarifier?