A couple years ago my previous pool man switched out either my current pump or filter (cant remember which one at the time) and when he did he removed a clapper valve and never installed a new one. After researching on this site, that is a bad thing right? I notice my spa drains down when the pump shuts off and upon starting there is a violent flow of water into the spa with lots of bubbles in the pool return until the spa starts flowing over.
I should install a valve to prevent backflow right?
Hopefully it can been seen as this is the only picture I have of the plumbing when we first moved in:
Here is my current set up:
Are there any other valves, shut offs, etc I need to install?
And what are these?
I should install a valve to prevent backflow right?
Hopefully it can been seen as this is the only picture I have of the plumbing when we first moved in:
Here is my current set up:
Are there any other valves, shut offs, etc I need to install?
And what are these?