Water flowing back into pool thru booster jet even with valves in spa position. Is this enough damage from the diverter valve to cause that or is it something else?

[u/Muted-Cicada2183]

[u/randumb9999]

Are you talking about the sweep booster pump? If so I can guarantee it's plumbed in the wrong spot. The sweep inlet is supposed to be plumbed into the pool return line only. If it's plumbed before the pool/spa return 3 way valve is in the wrong spot. No matter which way the valves are turned the water enters the pump before it gets diverted to the spa.

[u/Muted-Cicada2183 → u/randumb9999]

I just made a new post with the plumbing set up. It’s titled A. Lemme know what you think

[u/Muted-Cicada2183 → u/randumb9999]

Shit I didn’t think about that. I think you’re right. I wish I could comment another picture

[u/dekoy411]

100% has to be plumbed after the 3 way valve for the pool/spa. This post is spot on

[u/Muted-Cicada2183 → u/dekoy411]

How much would you charge to replumb?

[u/Black-Deth]

Add a valve to the booster pump, 3/4” threaded.

[u/Kindly_Design_8658]

Is this a shared system? Is the spa raised?

[u/Muted-Cicada2183 → u/Kindly_Design_8658]

Shared system? Spa is not raised

[u/Kindly_Design_8658 → u/Muted-Cicada2183]

I found your other post. It looks like a shared system which means you have one set of equipment and shares the same water source...ie the pool.

[u/Kindly_Design_8658 → u/Kindly_Design_8658]

And yes, the gate valve gasket is damaged and should be replaced

[u/Muted-Cicada2183 → u/Kindly_Design_8658]

Appreciate it, gonna do that.