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Leak detection tools
#11

You can get an ultrasonic leak detector at Harbor Freight.

2001 Newell #579
tow a Honda Odyssey
fun car: 1935 Mercedes 500K replica
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#12

Harbor Freight has a Refrigerant leak detector - is this what you are talking about Chester?
Wonder if this would hear water leaks under a slab?
http://t.harborfreight.com/electronic-fr...92514.html

Karen & Adrian Abshire 
1998 2 slide 45' Newell Coach 498 
Prior: 1985 Foretravel ORED 35, 1988 38' Foretravel U280, 2000 Foretravel 42' U320, 1990 Bluebird Wanderlodge WB40
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#13

Thanks so much for your help. We did find a leaking solenoid back by the rear six-back. It is intermittent so when we looked before it wasn't leaking but then when the compressor was running non-stop we found it leaking bad. We have had a problem with that one in the past.

Rick and Cindy Freeman
1997 Newell Coach #465
Spending summers in Central Wisconsin and winters in Mesa, AZ.
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#14

I finally got my brake/leveling system fixed - no more air leaks! The system sits at about 110psi for days! The problem was the ‘splitter/relay’ valve and upon replacing, voila! No more air leaks... Now I need to find the schematic for the 12-volt system because the 12-volt pump will run continuously...

Karen & Adrian Abshire 
1998 2 slide 45' Newell Coach 498 
Prior: 1985 Foretravel ORED 35, 1988 38' Foretravel U280, 2000 Foretravel 42' U320, 1990 Bluebird Wanderlodge WB40
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#15

Have you fixed your air leak in the potty? That is a direct line off the 12V

Richard and Rhonda Entrekin
99 Newell, 512
Maverick Hybrid Toad
Inverness, FL (when we're home Cool )
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#16

I ditto Richard’s comments about air leaks in toilets. I recently found a large air leak in my rear toilet. Initially, I disconnected the air input line and blocked it off to stop the air leak. After careful troubleshooting, I suspected it was within the air/water sequence valve. I carry a spare rebuild kit, and rebuilt the valve. I have to admit 3rd time is a charm to get it right with help from AnnaMaria at Mullaney to fix both water and air issues when rebuilding the valve correctly. Now, all is well again with my air system. Both toilets will be at the top of the list for places to check when encountering air leaks.

Mike & Jeannie Ginn
2000 Newell #555 - sold July 2020
2019 Leisure Travel Van FX model
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#17

The 12-volt system seems to be working fine with no or very small leaks. The dash gauge shows about 30psi so that every time I flush the pump comes on. What do you guys gauges show please?

Karen & Adrian Abshire 
1998 2 slide 45' Newell Coach 498 
Prior: 1985 Foretravel ORED 35, 1988 38' Foretravel U280, 2000 Foretravel 42' U320, 1990 Bluebird Wanderlodge WB40
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#18

my 12v pump is a 30-50psi well pump switch if i remember right

tom

2002 45'8" Newell Coach 608  Series 60 DDEC4/Allison World 6 Speed HD4000MH

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#19

My 12v air pump has a gauge on it. I have it adjusted to provide 60 psi per Mullaney recommendations. I tried 45 psi and the toilets did not operate correctly, but do at 60 psi.

Mike & Jeannie Ginn
2000 Newell #555 - sold July 2020
2019 Leisure Travel Van FX model
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#20

The air leak questions just keep coming. Mine is about removing the pressure from the 12V system so a repair can be made.

The leak is at a T just upstream of the dump valves port side water bay. Used the Whisper to isolate. There’s even a little dark stain where the air has been blowing against the bulkhead.
There’s supposed to be a valve near the left rear bag tank that isolates this circuit, but my coach does not appear to have it. Should I just turn off the compressors and let this circuit bleed down so I can make the repair? My brake/bag pressure and slide seals remain presssurized, so it seem the various check valves are working as intended.

Thanks!
Chuck

2001 #579 ("Chester's Coach")
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