My first post and I hope I am posting in the right forum.
I have a spa pool combo and the leak in my spa have me baffled. Let me try to explain the situation. The spa has a spill over, when the timer shut the system down, the next morning the spa would have leaked about an inch.
However, if before the system shuts down I use the valve and turn of the spa return, the next morning there would be no leak, not even a cup would have leaked. I don't know if it's the check valve that is bad or the spa return valve. Can someone help in this matter please.