How do you Prime the Water Pump - Escape Trailer Owners Community

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Old 10-16-2016, 02:02 PM   #1
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How do you Prime the Water Pump

How do you prime the water pump if it doesn’t do it automatically ?

The trailer (19’-2o15) was on shore connections for the last couple of months. The fresh water tank was empty during that time. We filled it before disconnecting from shore. There are 4 lights showing a full fresh water tank.
Both the hot & cold valves are open. The pump is running. No water.
The system was working perfectly before attaching to the shore system.

I noticed that about half way between the tank & the pump in the clear hose, there is a about 2 feet of hose attached to the valve that just hangs free. I cannot see where it might be attached. The valve is positioned to indicate that the water should be passing through it to the pump.

Any ideas or suggestion as to how to prime the water pump ?

Would attaching the “water purge” adapter to the fresh water fill outlet & a little air pressure prime the pump ? Or would this create another headache ?

How long does one allow the pump to run to prime the system ?

Thank You for any ideas & suggestions ?

uw
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Old 10-16-2016, 02:34 PM   #2
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The valve and short hose are for winterizing the system. When using the trailer the valve should be positioned to pull water from the tank. You can put the short hose into a container of water and see if the pump pulls that water in, if so the valve needs to be switched back to the tank setting.
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Old 10-16-2016, 02:38 PM   #3
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Check the faucet aerator. Take it apart carefully, making note of what goes where in re-assembling the aerator parts. You may have some debris in the aerator filter that is shutting off flow.
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Old 10-16-2016, 03:17 PM   #4
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You have to close all your faucets before the pump will pressurize and turn itself off.
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Old 10-16-2016, 05:50 PM   #5
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I've always just left one faucet open, only takes a minute or so.
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Old 10-16-2016, 06:06 PM   #6
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Can take quite a few minutes. Might keep running it.
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Old 10-16-2016, 06:45 PM   #7
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Water system

One thing I usually do to make sure I don't have an air lock is to open the pressure relief valve at the top of the hot water system on the outside of the trailer. Sometimes that helps to prime up faster and let's the hot water side flow more quickly. I do this with the heating function off so as not to get scalded.
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Old 10-16-2016, 07:49 PM   #8
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Quote:
Originally Posted by Iowa Dave View Post
One thing I usually do to make sure I don't have an air lock is to open the pressure relief valve at the top of the hot water system on the outside of the trailer. Sometimes that helps to prime up faster and let's the hot water side flow more quickly. I do this with the heating function off so as not to get scalded.
Dave
We do that too Dave. Not sure if it makes any difference, but I've gotten into the habit, and it also verifies the water heater is full.

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Old 10-16-2016, 10:12 PM   #9
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Quote:
Originally Posted by OWilly View Post
How do you prime the water pump if it doesn’t do it automatically ?

The trailer (19’-2o15) was on shore connections for the last couple of months. The fresh water tank was empty during that time. We filled it before disconnecting from shore. There are 4 lights showing a full fresh water tank.
Both the hot & cold valves are open. The pump is running. No water.
The system was working perfectly before attaching to the shore system.

I noticed that about half way between the tank & the pump in the clear hose, there is a about 2 feet of hose attached to the valve that just hangs free. I cannot see where it might be attached. The valve is positioned to indicate that the water should be passing through it to the pump.

Any ideas or suggestion as to how to prime the water pump ?



Would attaching the “water purge” adapter to the fresh water fill outlet & a little air pressure prime the pump ? Or would this create another headache ?

How long does one allow the pump to run to prime the system ?

Thank You for any ideas & suggestions ?

uw
Have you tried opening a faucet while the pump is running? There may be an airlock between the pump and faucet. Opening the faucet may let the pump push the air out. Not sure what you mean by opening the hot and cold valves unless those are the faucets. if that is the case then ignore this message.
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Old 10-17-2016, 12:38 PM   #10
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This happens to us from time to time. I suspect when this occurs the pump is pumping air. I have a length of hose I keep handy which I hold on to the faucet and then draw the air out and water through. The first time this happened I called Tammy and she giggled and said "you have to suck on the tap".
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