Comments needed about my pool pipe setup

[rockryan]

I have a Polaris 3900. The photo is the return side of the pool setup.
When the Lever is to the right as seen in photo the Polaris runs fine.
The return only goes to the booster pump. There are no returns to the pool.

When the lever is turned to the vertical (to the up in the photo)
the return goes to both the heater (and out of the heater to the pool returns)
and the booster pump. The Polaris does not run very well this way.
But I think it is designed to run this way.
The pool gets its returns and the booster pump is running.

When the lever is turned all the way to left the return is thru the heater and then thru the pool returns.
The Polaris of course does not run this way because it does not get any water to the booster pump.

I would appreciate any comments.

 

[Texas Splash]

Yes, you describe the image and current set-up quite well. So aside from the potential low-flow issue when water is allowed to go to both the cleaner and heater/returns at the same time, did you have another concern?

 

[rockryan]

Yes, you describe the image and current set-up quite well. So aside from the potential low-flow issue when water is allowed to go to both the cleaner and heater/returns at the same time, did you have another concern?

Thank you for your reply!
No. Just that one concern. Im just wandering why its so slow when it's set up this way.
Maybe I need a stronger pump. its a 3/4HP Polaris PB460 Booster Pump Motor.
My pool is about 36ft long. Frustrating.