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09-13-2017, 11:34 AM
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#1
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RV Nut
Newmar Owners Club Winnebago Owners Club Nor'easters Club
Join Date: Oct 2014
Posts: 1,932
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Fresh Water Overflow Mod
Well I finally got around to modifying the fresh water overflow hose on my 2015 Ventana 4037.
Whenever I fill it up, by the time I pull the unit out into the street and get the Jeep hooked up, I've lost 1/3 of the water in the tank.
I read somewhere on IRV2 about extending the overflow hose and finally got to it today. The job itself it simple. Removing/Replacing the pegboard and aluminum angle iron is a bigger pain than it should be.
I'll find out tomorrow if it works when we head out to the Hershey Show.
I bought the tubing here:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Attached are pictures of the routing of the tubing and the job all buttoned back up.
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2015 Newmar Ventana 4037 - All Electric
2012 Jeep Wrangler Unlimited Rubicon TOAD
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09-13-2017, 11:53 AM
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#2
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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Unfortunately most who've done the mod , had to raise the brass tank vent too; to prevent it leaking instead of the over flow .
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99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-13-2017, 11:54 AM
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#3
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Senior Member
Join Date: Nov 2015
Posts: 970
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Much like I had Newmar do last month under warranty. I have not had a problem with siphon issues since.
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Wayne, Cindy, & Golden Retriever Finn
2017 London Aire, 2014 CRV, Go Hokies
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09-13-2017, 11:56 AM
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#4
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RV Nut
Newmar Owners Club Winnebago Owners Club Nor'easters Club
Join Date: Oct 2014
Posts: 1,932
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Quote:
Originally Posted by Skip426
Unfortunately most who've done the mod , had to raise the brass tank vent too; to prevent it leaking instead of the over flow .
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Interesting, why would water exit the air admittance valve? It really shouldn't be able to flow in that direction.
__________________
2015 Newmar Ventana 4037 - All Electric
2012 Jeep Wrangler Unlimited Rubicon TOAD
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09-13-2017, 12:33 PM
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#5
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Senior Member
Join Date: Apr 2011
Location: Powell River, B.C.
Posts: 31,269
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I haven't had the issue myself ; just going by posts from other Newmar owners.
http://www.irv2.com/forums/f103/fres...ak-337724.html
__________________
99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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09-13-2017, 12:41 PM
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#6
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RV Nut
Newmar Owners Club Winnebago Owners Club Nor'easters Club
Join Date: Oct 2014
Posts: 1,932
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Quote:
Originally Posted by Skip426
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Well, it will be obvious tomorrow.
I'll update my experiences.
__________________
2015 Newmar Ventana 4037 - All Electric
2012 Jeep Wrangler Unlimited Rubicon TOAD
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09-13-2017, 12:58 PM
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#7
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RV Nut
Newmar Owners Club Winnebago Owners Club Nor'easters Club
Join Date: Oct 2014
Posts: 1,932
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Quote:
Originally Posted by ewlee
Much like I had Newmar do last month under warranty. I have not had a problem with siphon issues since.
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Did you have to raise the air admittance valve too?
__________________
2015 Newmar Ventana 4037 - All Electric
2012 Jeep Wrangler Unlimited Rubicon TOAD
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09-13-2017, 01:04 PM
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#8
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Senior Member
Join Date: Jul 2015
Location: Lenexa KS
Posts: 2,037
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Newmaepusher
I don't suppose you have a photo of what it looked like before the mod? Thanks
__________________
Bill & Kelli 2015 Dutch Star 4366
2002 Safari Zanzibar 3906
1995 Fleetwood Bounder 36JD
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09-13-2017, 01:40 PM
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#9
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RV Nut
Newmar Owners Club Winnebago Owners Club Nor'easters Club
Join Date: Oct 2014
Posts: 1,932
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Quote:
Originally Posted by twojayhawks
Newmaepusher
I don't suppose you have a photo of what it looked like before the mod? Thanks
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I forgot to snap a photo. But here is someone else's that the overflow hose looked similar to the routing of mine.
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2015 Newmar Ventana 4037 - All Electric
2012 Jeep Wrangler Unlimited Rubicon TOAD
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09-13-2017, 03:20 PM
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#10
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Senior Member
Join Date: Oct 2014
Posts: 1,120
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Fresh Water Overflow Mod
I had the issue of the brass AAV leaking. Here is a picture of my full modification. Note that I also added a siphon breaking pin hole in the accordion overflow tube just past the loop over. Note also my SeaLevel gauge sensors.
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Phil and Laura (and Sam too!)
2017 DSDP 4369 on Spartan K2
2017 Unltd Rhino Rubi Recon Toad
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09-13-2017, 03:29 PM
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#11
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Senior Member
Join Date: Nov 2015
Posts: 970
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Quote:
Originally Posted by newmarpusher
Did you have to raise the air admittance valve too?
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No, they did not raise the AAV. When the tech tested the new routing, he overfilled the tank and there was not an issue with water coming out of the AAV. I don't know what your coach has but mine has an auto fill on the tank so it normally stops lower than what he filled it to.
__________________
Wayne, Cindy, & Golden Retriever Finn
2017 London Aire, 2014 CRV, Go Hokies
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09-13-2017, 03:51 PM
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#12
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Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Vail, Arizona
Posts: 2,057
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I did not try this on my last rig but will on the new one in the next day or so. If you drill a small hole at the top of the overflow tube, it will suck air and won't be able to siphon right? These other solutions look complicated.
__________________
Bill & Chris Bélanger (KI1Z)
'04 Georgetown XL > '17 4018 DSDP FL > '18 DSDP 4327 K2> ‘21 LA 4551 K3
2018 JL Wrangler Rubicon 2 Door
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09-13-2017, 04:05 PM
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#13
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Senior Member
Join Date: Nov 2015
Posts: 970
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Quote:
Originally Posted by BBelanger
I did not try this on my last rig but will on the new one in the next day or so. If you drill a small hole at the top of the overflow tube, it will suck air and won't be able to siphon right? These other solutions look complicated.
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The overflow tube is there to relieve excess water outside the coach instead of inside the coach, which IMHO, is what a small hole in the tube will do for you.
__________________
Wayne, Cindy, & Golden Retriever Finn
2017 London Aire, 2014 CRV, Go Hokies
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09-13-2017, 04:09 PM
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#14
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Senior Member
Newmar Owners Club
Join Date: Apr 2016
Location: Vail, Arizona
Posts: 2,057
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Quote:
Originally Posted by ewlee
The overflow tube is there to relieve excess water outside the coach instead of inside the coach, which IMHO, is what a small hole in the tube will do for you.
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I knew someone would say that. How much water do you suppose? I'm talking about a pin hole. Anyway, I'm gonna try it. If it floods the compartment I'll have egg on my face for sure. I'm a risk taker!
__________________
Bill & Chris Bélanger (KI1Z)
'04 Georgetown XL > '17 4018 DSDP FL > '18 DSDP 4327 K2> ‘21 LA 4551 K3
2018 JL Wrangler Rubicon 2 Door
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