Pools, Spas and Hot Tubs - pressure/heater

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abNORMal
06-21-09, 06:20 AM
I have a 30k gal in ground pool with a heater. I never noticed this before, but I replaced the pump motor this year and I was keeping a closer eye on things.

When I route the water thru the heater the pressure goes up a few lbs. Is this normal or do I have a partial blockage in the heater?

todrut
06-21-09, 08:22 AM
yes its normal, heater creates more friction or resistance causing pressure to rise slightly.
dingoohio
06-21-09, 09:19 AM
"when you route water through heater" do you have a "Y" to switch back and forth? this seems like a good idea when just normal use or cleaning. I only run heater just to warm water occasionally. Seem like a good idea to not run through heater when doing your cleaning. any thoughts?

todrut
06-21-09, 10:52 AM
It is done both ways, it is a good idea to have a bypass if not using the heater as it will help extend the life of heat exchanger.
abNORMal
06-22-09, 08:02 AM
Thanks, guys.

Yes, this has a permanent bypass.