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Old 06-04-2016, 10:58 AM   #1
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Air in system when water heater used?

Hey all, new here, new to campers! so lets get started!

Water system pressurizes great when i have the hot water heater isolated but as soon as open the valves to the water heater i get an endless supply of air in my lines, cold and hot. It will stay like that forever and the pump has to run constantly. I do not appear to be leaking water anywhere.

Im new to campers so i am following the steps the salesperson told me when I bought it. If im doing it wrong, let me know!
  1. Install drain plug anode rod.
  2. pressurize water system
  3. open valves to hot water tank
  4. open faucets to relieve air pockets

Camper is a 2011 Grey Wolf Patriot 25BH
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Old 06-04-2016, 12:50 PM   #2
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What about the hot water tank pressure relief valve?
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Old 06-04-2016, 12:51 PM   #3
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Is the tank actually full of water... Slowly, again, SLOWLY, pop the relief valve and see if you get water or air.

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Old 06-04-2016, 12:57 PM   #4
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I have slowly released pressure through the t&p valve and I am sure there is water in the tank. we have actually used the heater and had some hot water, but the air and lack of consistent pressure is enough that i have shut the valves to it the last two trips out and not bothered aside from trying to trouble shoot it. Have a week long trip coming up and the wife wants it fixed.
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Old 06-04-2016, 12:59 PM   #5
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Not that it may matter.. But when you said valves to heater, that is the winterizing valves? And it is Only the hot side? Not cold as well,on the pump.

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Old 06-04-2016, 01:09 PM   #6
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yes, the problem only exists when i allow water to travel to the heater by opening the winterizing valves. Problem exists whether crossover valve is open or closed.
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Old 06-04-2016, 01:15 PM   #7
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Ok, so NOT the heater then, something in the plumbing on the hot side.

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Old 06-04-2016, 01:17 PM   #8
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Wouldnt it leak rather than suck air though? I hadnt considered the rest of the hot water plumbing. Maybe i can isolate the individual sections and see if i can find where the air is coming in from?
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Old 06-04-2016, 01:25 PM   #9
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I would think so.. I know on my pump between the fresh tank and pump is where my anti freeze valve is. It's a three way ball valve, if I do not use Teflon tape on the AF side it will suck air in through the cap and valve. But it does not leak water.. Under vacuum it leaks air in though.

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Old 06-05-2016, 01:39 PM   #10
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Quote:
Originally Posted by LifeLessLived17 View Post
Hey all, new here, new to campers! so lets get started!

Water system pressurizes great when i have the hot water heater isolated but as soon as open the valves to the water heater i get an endless supply of air in my lines, cold and hot. It will stay like that forever and the pump has to run constantly. I do not appear to be leaking water anywhere.

Im new to campers so i am following the steps the salesperson told me when I bought it. If im doing it wrong, let me know!
  1. Install drain plug anode rod.
  2. pressurize water system
  3. open valves to hot water tank
  4. open faucets to relieve air pockets

Camper is a 2011 Grey Wolf Patriot 25BH
Sounds like pump or filter has a Crack in it and pulling air into system, leak would only show in lines from pump forward so a fitting or something is allowing air into the system on the suction side.
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