GA_Boy
Well-known member
Can I safely test my fresh water system with regulated air? I drained but didn't blow out the lines and it got very cold here. :-[ I'm kinda worried about the 12 volt H2O pump. 
Marvin
Marvin
Air test for H2O
- Thread starter GA_Boy
- Start date
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Gary RV_Wizard
Site Team
Yes. I would use 25-30 psi.
However, that will only test the internal check valve in the pump, the one that prevents water from flowing back through the pump to the tank. You can't use air to verify that the pump can pump (suck water from the tank). You cannot pressurize the fresh tank with air - the tank is vented.
However, that will only test the internal check valve in the pump, the one that prevents water from flowing back through the pump to the tank. You can't use air to verify that the pump can pump (suck water from the tank). You cannot pressurize the fresh tank with air - the tank is vented.
Memtb
Well-known member
Ga Boy, If I understand your concerns.... you are worried about the pump freezing after ?air? wintering your system! I too, blow out my system, but follow-up through the pump with the RV antifreeze. Making sure your water heater is ?bypassed?, then pull from your antifreeze bottle with your pump ?winterization? line. This will flush your 12 volt water pump with antifreeze.....winterizing your pump!
OP
OP
GA_Boy
Well-known member
Thanks for the replies. I will wait for warmer weather and do the test (Air and visual and then water)
Marvin
Marvin
