Removing Polaris, what to do with return line now

Welcome to TFP.

How many returns do you have?

Will making the Polaris line a return improve the circulation of your pool?

What is the placement of your skimmers, returns, and the cleaner line?
 
There are 3 other returns, two at one end and one near the opposite end. The Polaris return is about mid pool. The skimmer is close to the end with the single return and there are 2 floor suction points. There is no cleaner line. When I wasn't using the Polaris, the return would just put some water straight back into the pool with no jet directing it.
 
If you make the cleaner pipe into a return you need to add it to the return manifold so the water gets split 4 ways instead of 3 ways. Note that it will reduce the flow rate from all your returns.

If your pump was flowing 30GPM, then divided into 3 returns each return will have 10GPM. Add another return and the flow rate from each return would be 7.5 GPM.
 
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