Wiring a 2sp Hayward pump to automatically switch from HI to LO?

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
9,646
Northern NJ
You can do it by adding an Intermatic T106 to switch speeds to your existing timer. See...

 

JamesW

TFP Expert
Mar 2, 2011
16,322
You really don't need high speed for normal circulation.

I would just use low speed for circulation and high speed for specific situations.

You really shouldn't need high speed at all.
 

Fire

Bronze Supporter
May 30, 2019
65
Toronto Ontario
You really don't need high speed for normal circulation.

I would just use low speed for circulation and high speed for specific situations.

You really shouldn't need high speed at all.
I'm finding that if I keep it on LO a small air bubble forms in the pump basket that slowly gets bigger over time. When it's on HI there is no air. If I leave it on LO for too long I'm afraid the pump will run dry.
 

JamesW

TFP Expert
Mar 2, 2011
16,322
You might have an air leak. Maybe at the lid. Check the oring and make sure that it's clean and lubricated.
 
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