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Old 04-08-2014, 04:09 PM   #1
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water pump has lost it's prime

Does anyone know how to prime one? There must be a fast way to do it, I don't want to take it to the shop. I have a Cedar Creek 30RL. Water pump runs fine, just no water.
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Old 04-08-2014, 04:18 PM   #2
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Originally Posted by spock123 View Post
Does anyone know how to prime one? There must be a fast way to do it, I don't want to take it to the shop. I have a Cedar Creek 30RL. Water pump runs fine, just no water.
Spock what brand of pump do you have? I'm 90% sure you shouldn't have to prime your pump unless you have an out of the ordinary brand/model.
Check:
1. Does the pump sound like its working?
2. All bypass valves open?
3. Enough water in the tank?

If all three above are YES then you might have what I had this spring...a cracked valve and diaphram. = need new pump!
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Old 04-08-2014, 04:20 PM   #3
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The pumps are self priming... I have had this same situation happen and had to:

1. Shut the pump off
2. Open a faucet
3. Switch over to fresh water (just move the valve over)
4. Switch back to the tank
5. Turn pump back on

It was like I had a vacuum lock. I am not sure which action helped but it did fix the problem for us.
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Old 04-08-2014, 04:25 PM   #4
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Who did the winterizing of your unit?
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Old 04-08-2014, 05:27 PM   #5
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Who did the winterizing of your unit?
me
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Old 04-08-2014, 05:32 PM   #6
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OK, so make sure you have enough water in tank, if you have a anti-freeze suction valve on intake of water pump is closed or switched to fresh water tank, strainer at intake water pump is free of debris and screwed on properly. Start water pump and hope it works.
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Old 04-08-2014, 05:35 PM   #7
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Originally Posted by 38FLCamper View Post
The pumps are self priming... I have had this same situation happen and had to:

1. Shut the pump off
2. Open a faucet
3. Switch over to fresh water (just move the valve over)
4. Switch back to the tank
5. Turn pump back on

It was like I had a vacuum lock. I am not sure which action helped but it did fix the problem for us.
I have a shure pump and I will try that
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Old 04-08-2014, 05:36 PM   #8
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OPEN a faucet!
As mentioned make sure you actually have water in the tank.
Let pump run for several minutes.
It will probably work.
Mine does this from time to time.
Opening a faucet to let ALL air out helps it get started.

Good Luck!
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Old 04-08-2014, 05:39 PM   #9
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OK, so make sure you have enough water in tank, if you have a anti-freeze suction valve on intake of water pump is closed or switched to fresh water tank, strainer at intake water pump is free of debris and screwed on properly. Start water pump and hope it works.
I drain the water out of the tank and then let the pump run a few seconds to get the water out, I keep heat in camper all the time and a electric heater in the basement next to pump
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Old 04-08-2014, 05:41 PM   #10
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Does anyone know how to prime one? There must be a fast way to do it, I don't want to take it to the shop. I have a Cedar Creek 30RL. Water pump runs fine, just no water.
I had the same problem once. I tried everything but the pump wouldn't prime. I pulled the pump and dismantled it looking for anything wrong with the diaphragm or lines. Everything looked good.

Then I blew into the feed line to make sure it was clear to the tank. It was. Next I sucked water up the feed line by mouth (just like siphoning gas for an old car). When I got a mouthful of water, I quickly reattached the line. From then on, everything worked fine. I'd try some of the other suggestions first, but priming by mouth then reattaching the line worked for me.
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