Plugging returns while using “water cooling fountain”?

[GeauxTigerz]

I’ve read several posts and had suggestions to try a pvc “fountain” connected to a return jet to cool my pool water. I purchased a fountain and connected it but unfortunately due to 4 other returns being on the same circuit I can’t create enough pressure to make it work properly even with a 3hp VSP pump maxed out. I’ve also closed the valve to my bubblers. Is there any issue with temporarily plugging the other return jets to divert the water pressure to the fountain while in use?

 

[mknauss]

Try plugging one return at a time. Watch your filter pressure.

 

[GeauxTigerz]

Try plugging one return at a time. Watch your filter pressure.

Thanks Marty. What’s my max pressure I should be watching for to limit any possibility of causing any issues?

 

[mknauss]

Pressure is very dependent on each system. I would think 30 psi would be very high. You should get enough diversion to your fountain before that.

 

[GeauxTigerz]

Ok perfect. My pressure usually stays around 8 on my baseline schedule at 1600 rpm. I was assuming no more than 20-25. If I can’t get it done before 30psi I need to rethink my fountain design. Thanks as always Marty!

 

[revitup]

What issue could occur from the excess pressure of running a fountain? I have 3 returns and plug one to run the fountain leaving only one open other than the fountain. What should I look for?

 

[mknauss]

Leaks, pump motor overheating, etc. You need to keep adequate flow through the pump.