Well here we go again Spa is backflowing into the pool. I had this same problem about a month ago so I replaced the check valve and that was the problem.
So now its happening again? I wouldn't think the brand new check valve would go bad that fast so I'm trying to find out if I have another problem?
As you can see from the picture there is a Jandy valve on the return and I have shut the valve off to the spa but it is still backflowing? How in the heck is this possible? Could it have something to do with the In floor Cleaning system?
I can't figure it out