Jandy 3 way for discharge before or after pump?

Weasel2017

Bronze Supporter
May 18, 2021
63
Canada
Pool Size
10700
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
1 Skimmer no main drain on pool. Was thinking of using Jandy 3 way valve before the pump as my shut off and also give me the option to discharge water from the pool when needed. Any issue having this on the suction side as opposed to the return?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,661
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
How would putting the valve on the suction side of the pump allow you to discharge water?
 

Weasel2017

Bronze Supporter
May 18, 2021
63
Canada
Pool Size
10700
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
My thought was to partially open the inlet going to the discharge to divert some of the water. The suction side port from skimmer and to pump would be fully open. I've seen the same set up done at the filter so maybe that is a better solution. Just trying to kill 2 birds with one Jandy valve.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,661
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
Again, how would you send water to discharge from the suction side of the pump?

Regardless, you best to get a small sump pump to remove water from a pool. The risk of losing prime and destroying your pool pump is too high.
 

Weasel2017

Bronze Supporter
May 18, 2021
63
Canada
Pool Size
10700
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
In my head with the system flowing I figured I could divert the water with the valve partially cracked to the discharge but now I see I am likely just creating another suction point for the system.

Any issue with putting the valve on the return side? I'm not looking to drain this pool with this just take excess water out after rains etc.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
43,661
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
You can put it on the pressure side of the pump.
I again warn you of running the pump dry.
 

Weasel2017

Bronze Supporter
May 18, 2021
63
Canada
Pool Size
10700
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
Thanks for the insight. Glad this is a place I can ask questions now to save headaches and $$ later on. Much appreciated.
 
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