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Old 11-05-2015, 11:53 AM   #1
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Are plumbing leaks common?

Here's the story:
I brought the motor home to the house Wednesday noon. I filled the freshwater tanks and then disconnect the city water. I was in and out loading for this weekends trip. Thursday morning I turned on my 425 watt electric water heater, the water pump was off but the system was more than likely pressurized from use on Wednesday. When I enter a couple hours later, I see a trickle of water a cross the floor. (The hot water tank had reached 136F, the electric element maxes at 148F) I traced the water back to the bathroom sink and I was able to get a good half a turn on the cold water faucet connection. It was the one that was wet. Earlier in my travels I noticed the same issue at the kitchen sink and I also found loose connection on the inside of the valve area. I thought that I tighten the bathroom sink connections too, but maybe I didn't.

Anyone else have these "thumb nut" connection loosen up over time?

I just assume it would be wrong to put a wrench on them since they have the little tabs for fingers on the nut.
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Old 11-05-2015, 02:15 PM   #2
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Update:
I opened a faucet and relieved the pressure in the system when the hot water tank was at 136F and closed it. When the tank reached 148F, I opened a faucet - I was surprised how much pressure was in the system! That little 6 gallon tank creates a lot of expansion. I wish I had a pressure gauge on the system.
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Old 11-05-2015, 02:36 PM   #3
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I had a few drain nuts back off over time. What we did to fix that was drill a small hole in the tab and put a saftey wire in it so it can never loosen up again. Just things you learn from Racing cars , saftey wire anything and everything you can , 47 years of racing and never had a part come loose of fall off.
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Old 11-06-2015, 02:52 PM   #4
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That's a great idea, I'm getting my drill out when we get home!
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Old 11-07-2015, 12:58 PM   #5
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A side note here....any time a hot water heater is set above about 125 degrees the water could burn someone. Be careful at the temps you are mentioning.
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Old 11-07-2015, 02:20 PM   #6
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Quote:
Originally Posted by Kevin & Judy View Post
I had a few drain nuts back off over time. What we did to fix that was drill a small hole in the tab and put a saftey wire in it so it can never loosen up again. Just things you learn from Racing cars , saftey wire anything and everything you can , 47 years of racing and never had a part come loose of fall off.
Solves a lot of problems.
30+ years prepping race cars.
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Old 11-07-2015, 05:20 PM   #7
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I would love to see a picture with the safety wire. I just can't visualize it and mine have comne loose so I would be interested in this trick.

Thanks...Steve
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Old 11-09-2015, 12:52 AM   #8
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I found at CW or Ace hardware a little water monitor that is battery powered and sounds off with a loud squeal when a little water leaks out. I have one under the kitchen sink, one in the bathroom under the sink and one under in the water heater area. The batteries seem to last a long time.
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Old 11-09-2015, 06:16 AM   #9
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Originally Posted by oldcomputerwiz View Post
I would love to see a picture with the safety wire. I just can't visualize it and mine have comne loose so I would be interested in this trick.

Thanks...Steve
Look under (Aircraft Engines) many Pics of (Fasteners secured with Safety Wire) Youroo!!
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Old 11-09-2015, 03:06 PM   #10
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Cool

I believe that "oldcomputerwiz" was wanting to know what you attached the safety wire to at the other end "youroo".....Being a retired Flight Engineer myself, I am also curious???? There are lots of things to do that to on an engine, but not much in a 5er, or TV.....
I just make it a point of periodically checking all my connections before and after a long trip on the road.
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