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07-14-2023, 05:55 PM
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#21
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Senior Member
Join Date: Nov 2017
Location: Mico, TX
Posts: 7,467
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If a cone washer is tightened and then retightened it will tend to no seal properly. I had a small leak under the kitchen sink in my camper and tried to snug up the fitting that was leaking and found by talking to an RV tech that re-tightening generally won't help. New cone washer is in order.
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wiredgeorge Mico TX
2006 F350 CC 4WD 6.0L
2002 Keystone Cougar 278
2006 GL1800 Roadsmith Trike
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07-15-2023, 07:58 AM
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#22
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Member
Join Date: Feb 2021
Location: Jackson. Michigan
Posts: 32
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Quote:
Originally Posted by bobbecky
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I plan on going that way, however, my leak seems to be coming from were the fitting goes into the pex.
Before I start cutting, any idea of the size of the pex tubing?
Thanks for all the answers
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2021 #219BH Passport pulled by a F150 3.6 Eco boost with HD tow package
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07-15-2023, 08:28 AM
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#23
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Senior Member
Join Date: Jul 2013
Location: Box Elder
Posts: 2,910
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It is all 1/2" in these rigs. That is the nominal size, the OD is .625 (5/8"), and the ID is .485". Cutting PEX is best done with a cutter made for it. https://www.amazon.com/IWISS-Cutters...zcF9hdGY&psc=1
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Bob & Becky
2012 3402 Montana
2012 Chevy 2500HD D/A CC
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07-16-2023, 05:46 AM
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#24
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Member
Join Date: Jul 2010
Location: Wpg
Posts: 51
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Quote:
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$25 for a new valve is "much cheaper" than 2 weeks of your trailer sitting in a service department storage lot during camping season.....
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So just wondering about the $25.00 valve, is this a dometic valve or an aftermarket valve? Asking because I just purchased the same valve, cost me $97.00 including taxes. This is in Canada so I expect the price to be higher but not by that much.
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07-16-2023, 06:26 AM
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#25
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,693
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Quote:
Originally Posted by bigrockk
So just wondering about the $25.00 valve, is this a dometic valve or an aftermarket valve? Asking because I just purchased the same valve, cost me $97.00 including taxes. This is in Canada so I expect the price to be higher but not by that much.
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Here's a google link. No $97 valves there;
https://www.google.com/search?q=dome...t=gws-wiz-serp
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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07-16-2023, 06:54 AM
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#26
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Member
Join Date: Jul 2010
Location: Wpg
Posts: 51
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Quote:
Originally Posted by sourdough
Here's a google link. No $97 valves there;
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When I check that link one the the first valves that pops up is listed on Amazon as 10% off for $95.08 ??
https://www.amazon.ca/Dometic-385311.../dp/B004SNJPV0
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07-16-2023, 07:08 AM
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#27
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,693
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Quote:
Originally Posted by bigrockk
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First one in the link is indeed Amazon for 46.48 at a 30% discount. It's the highest priced option on that page. Further on there are a couple that get into the 65-80 category from places I've not heard of and wouldn't buy from. Looks like there is an option from Amazon for 9.99 as well. Maybe there are translations for Canada??
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Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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07-16-2023, 07:50 AM
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#28
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Member
Join Date: Jul 2010
Location: Wpg
Posts: 51
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Quote:
Originally Posted by sourdough
First one in the link is indeed Amazon for 46.48 at a 30% discount. It's the highest priced option on that page. Further on there are a couple that get into the 65-80 category from places I've not heard of and wouldn't buy from. Looks like there is an option from Amazon for 9.99 as well. Maybe there are translations for Canada??
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I think you are on to something with the "translations for Canada". My search of the same link seems to come up a little different, most likely because I'm searching from a different country.
The one I bought came from a dealer and was actually 86.95 + 12% tax. I didn't shop around as I was in a hurry to grab the part and get it repaired.
Two things I learned: It's pricey to be in a hurry and even more pricey to be Canadian 
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07-16-2023, 08:28 AM
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#29
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by bigrockk
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The link you are using is "Amazon/Canada" It lists for $105.85, on sale for $94.65. That same valve, DOMETIC 385311641 Genuine OEM Water Valve Kit sells on "Amazon/US" list price $66.74 and sells for $46.48.
Your CN link: https://www.amazon.ca/Dometic-385311.../dp/B004SNJPV0
The USA link: https://www.amazon.com/Dometic-Sanit...zcF9hdGY&psc=1
Whether the difference is "supply and demand", exchange rates, business decisions, competition or ???? is something "hidden in the corporate bowels"...
I can't explain the difference, and in this case, I'd probably defer to a MUCH cheaper aftermarket valve to replace what's obviously so far over priced that it has lost all it's "OEM value"....
Here's one "Amazon Canadian aftermarket replacement" that, in all probability, once it's installed, you'll not be able to tell the difference. It lists for $25.50 https://www.amazon.ca/dp/B096QRJ5RG/...T1zcF9kZXRhaWw
There's a reason why people used to install aftermarket radios in cars and trucks (perceived improved sound and amplification)... Might find a similar aspect with an aftermarket toilet valve... At 4 for the price of one OEM valve, I'd be inclined to "dance with that partner"......
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John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-17-2023, 07:24 AM
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#30
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Member
Join Date: Jul 2010
Location: Wpg
Posts: 51
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The new spendy Dometic valve is already installed but I think I will order the aftermarket one for 25.50 and keep it as a spare, definitely worth a shot as the OEM valve doesn't seem to have great longevity anyway.
Thanks for the link.
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07-17-2023, 08:06 AM
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#31
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,997
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Quote:
Originally Posted by bigrockk
The new spendy Dometic valve is already installed but I think I will order the aftermarket one for 25.50 and keep it as a spare, definitely worth a shot as the OEM valve doesn't seem to have great longevity anyway.
Thanks for the link.
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I can't prove this, but I strongly suspect that the OEM "high cost" valve is the manufactured in the same china plastics plant that manufactures the aftermarket "low cost" valve..... The ones I've seen look identical (looks can be deceiving), feel the same, have the same "freeze moldings" and some of them even have similar numbers and mold markings.
One thing, at least for me, is that having a spare available almost always assures the installed part will NEVER fail..... 
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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07-17-2023, 03:38 PM
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#32
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Site Team
Join Date: Feb 2014
Location: W. Texas
Posts: 17,693
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Quote:
Originally Posted by bigrockk
The new spendy Dometic valve is already installed but I think I will order the aftermarket one for 25.50 and keep it as a spare, definitely worth a shot as the OEM valve doesn't seem to have great longevity anyway.
Thanks for the link.
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I keep one in the spare box. Haven't needed it but sure as I didn't have it one would break in the middle of nowhere and it would be a week to get one so I just look at it in the box from time to time. 
__________________
Danny and Susan, wife of 56 years
2019 Ram 3500 Laramie CC SWB SB 6.4 4x4 4.10
2020 Montana High Country 331RL
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