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Old 04-12-2015, 09:13 PM   #1
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Newmar 2015 Bay Star Sport 3309 water pump leak

New problem on my RV is a water leak at the outlet of the Flowjet water pump. Realized it this week while camping - I noticed a water puddle under the coach in an usual spot, then observed a drip. I opened the compartment and found it was soaked. Tried a number of things - this Flojet has rapid disconnects, which included a locking slider (blue) on a fitting that includes a barb on one end and a plug male with o ring on the pump side. The barb is connected to a 1/2 line. The leak is at the connector to the pump. I tried removal and replacing, no luck. Then tried a new o ring. Still leaking. Then I tried putting an additional clamp - a hose clamp. Slowed it down, but still a leak. The clamp on this line is an Oetiker. I have another trip and not enough time to take it in for service.
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Old 04-13-2015, 02:34 AM   #2
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Have you tried a screw steel band clamp around the hose for a tighter fit.
A water pump.---- fittings water pump
If its a thread fitting for hose connection sure its not cross threaded, try some Teflon tape.
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans
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Old 04-15-2015, 08:26 AM   #3
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I have a 2903 Baystar and mine leaks in the same location. I have taken the hose off and put it back thinking the blue clamp is not tight but still have a drip. I am going on the road but will try the other style clamp that 007 suggested. Hopefully that will work!!
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Old 04-16-2015, 11:37 AM   #4
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You have to cut off the Oeitker clamp - I do plan to try it next. Wonder if Newmar has an issue here ?
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Old 04-19-2015, 06:34 PM   #5
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I couldn't cut the clamp so I just cut the tube. I had ordered a new tube adapter so I installed it and a regular hose clamp. No leaks now.
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Old 04-19-2015, 07:36 PM   #6
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Glad you got it resolved.

My CS had a leak in the same place, which I fixed by replacing the Oeitker clamp with 2 hose clamps.

Does anyone know the pros/cons of using Oeitker clamps on vinyl pipe?
2014 Newmar Canyon Star 3424 / 2012 Honda Fit Sport toad
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Old 04-19-2015, 08:23 PM   #7
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Newmar may have an issue here. We had the same thing. We were carrying a small piece of furniture in that bay while traveling last year and when we got home and removed it, the moisture had ruined it. So much for the furniture. Anyway, I've put a new clamp on but haven't really had a chance to test it sufficiently to make sure I stopped the leak 100%. There must be something about the construction process or simply the use of the original type of clamp when exposed to the continuous vibrations of the pump over a period of time????? Wonder if there are others who have experienced the same?
2013 Canyon Star 3940
2011 GMC Terrain SLT-2 toad
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Old 07-04-2015, 08:52 AM   #8
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This is now solved. I cut the end of the tube off. Bought a new quick disconnect fitting and used a standard hose clamp. No leaks now.
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leak, newmar, water, water pump

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