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10-23-2024, 01:58 PM
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#1
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Winnebago Owner
Join Date: Dec 2023
Posts: 78
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Under sink water filter leaks while winterizing
Our operator manual very clearly states that we should remove the under sink water filter prior to going through the winterizing steps (see attached image).
But when we do that, and then either run water or proceed with the winterization steps, water/antifreeze sprays out the bottom of the assembly that the water filter attaches to.
I see that there is that swiveling valve atop the assembly, but it seems no matter which position I put that valve in, the spraying still happens. (see attached photos of the assembly from the sides, the valve, and the bottom of the assembly.)
Am I doing something wrong here? Maybe I'm not forcing the valve shut enough?
I am also including photos of the filter itself, just for reference.
I am hoping to not have to just leave the filter in place (i.e. sacrificing it by filling it with antifreeze) so that I can get my winterization done.
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S.Rodumus, 2007 Aspect 26A
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10-23-2024, 02:03 PM
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#2
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Winnie-Wise
Join Date: Dec 2019
Location: Kansas
Posts: 416
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The way these usually work is that you unscrew the cannister from the top section then remove the filter element from the cannister. Finally you screw the cannister back into the top section without the filter element installed. Is that what you are doing and it is still leaking? Usually there is also a rubber ring type gasket that is on the top of the cannister.
EDIT: It looks like your filter is not of the type that I described above so ignore my comments.
__________________
The things you own control your life.
2021 Winnebago Vista 35U towing a 2022 Jeep Cherokee Trailhawk
2010 Cadillac SRX 2003 Itasca Sunova 30B
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10-23-2024, 02:12 PM
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#3
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Winnebago Owner
Join Date: Dec 2023
Posts: 78
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Quote:
Originally Posted by Bones2003
The way these usually work is that you unscrew the cannister from the top section then remove the filter element from the cannister. Finally you screw the cannister back into the top section without the filter element installed. Is that what you are doing and it is still leaking? Usually there is also a rubber ring type gasket that is on the top of the cannister.
EDIT: It looks like your filter is not of the type that I described above so ignore my comments.
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Yeah, the canister definitely doesn't open. It's got to be that valve on top that's supposed to do .... something. :(
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S.Rodumus, 2007 Aspect 26A
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10-23-2024, 02:58 PM
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#4
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Winnebago Owner
Join Date: Dec 2023
Posts: 78
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The solution?....
Hmmmm, from what I'm reading HERE, I'm now starting to suspect that the valve is only there for the purpose of replacing the filter cartridge and isn't meant to hold back water when pressurized under running water with the water pump. Looks like I might need one of THESE.
Is that correct?
If so, I guess I gotta run antifreeze through my filter for now (winterizing needs to happen where I am by the weekend) because the plug won't arrive in time.
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S.Rodumus, 2007 Aspect 26A
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10-23-2024, 03:35 PM
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#5
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Site Team
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 8,389
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Your RV came with a plug that you insert instead of the filter when you remove the filter. Mine is bright blue and was inside the briefcase that contains all the Operator's manuals, etc.
If you don't have one, perhaps you can order on from Lichtsinn RV in Iowa. Here's a link to their Parts website:
https://www.lichtsinn.com/rv-parts
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2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
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10-23-2024, 03:43 PM
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#6
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Winnebago Master
Join Date: Aug 2005
Location: Nashua, NH
Posts: 1,838
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Quote:
Originally Posted by S.Rodimus
Hmmmm, from what I'm reading HERE, I'm now starting to suspect that the valve is only there for the purpose of replacing the filter cartridge and isn't meant to hold back water when pressurized under running water with the water pump. Looks like I might need one of THESE.
Is that correct?...
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Yes, that's the correct plug to insert when the filter is removed. Your coach should have come with one, but it may have been misplaced before it got to you.
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Chris Beierl
2005 Winnebago Vectra 36RD
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10-24-2024, 07:11 PM
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#7
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,376
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Quote:
Originally Posted by S.Rodimus
Hmmmm, from what I'm reading HERE, I'm now starting to suspect that the valve is only there for the purpose of replacing the filter cartridge and isn't meant to hold back water when pressurized under running water with the water pump. Looks like I might need one of THESE.
Is that correct?
If so, I guess I gotta run antifreeze through my filter for now (winterizing needs to happen where I am by the weekend) because the plug won't arrive in time.
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The lever/handle does need an extra push when it begins to feel like it is getting tight, mine does anyway. It should totally seal off the filter, which removes by a ½-turn clockwise, then drops out, but mine requires a down-pull to remove it from the housing.
You can remove that mineral build-up inside the housing with a shallow container of 50/50 vinegar and water, let soak overnight. This also sterilizes the head housing..
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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10-27-2024, 06:02 PM
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#8
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Winnebago Owner
Join Date: Aug 2021
Location: Mile High City
Posts: 89
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I couldn't take my filter off witbout spilling water in the sink cabinet, so I removed it, housing and all, and put in a water line with connectors already attached (it is made for connecting a toilet to a water line). I have used an external, in-line filter system to filter the water going into all our RVs, whether into the fresh tank or the city water connection to prevent hard water scale from forming in the PEX lines. So under-sink filter cartridges were an uneeded duplicate expense. And we drink city water at home, so double-filtered water was not something we cared about.
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Retirement is the best job I ever had!
2020 Winnebago Navion 24V, 450w solar, 210ah LiFePO4 batteries, Helwig
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10-27-2024, 06:38 PM
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#9
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Site Team
Join Date: Sep 2009
Location: Spring Branch, TX
Posts: 8,389
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Quote:
Originally Posted by Fanrgs
I have used an external, in-line filter system to filter the water going into all our RVs, whether into the fresh tank or the city water connection to prevent hard water scale from forming in the PEX lines.
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While I'm very sure that your external filter does a great job with lots of unwanted contaminants, I have serious doubts that it can " prevent hard water scale." That's a job for a water softener.
But if it works for you... then great.
__________________
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad
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10-27-2024, 07:25 PM
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#10
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Winnebago Camper
Join Date: May 2006
Location: Full-time - wherever
Posts: 23
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Mine has a plug which resembles just the top end of the water filter
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10-27-2024, 07:46 PM
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#11
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1996 Itasca 29Q
Join Date: Oct 2020
Location: Victoria, BC
Posts: 225
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Quote:
Originally Posted by S.Rodimus
Yeah, the canister definitely doesn't open. It's got to be that valve on top that's supposed to do .... something. :(
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The filter should be replaced every six months or so, use the old one for winterizing and a new one in the spring!
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10-27-2024, 09:03 PM
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#12
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Winnebago Owner
Join Date: Aug 2021
Location: Mile High City
Posts: 89
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Quote:
Originally Posted by creativepart
While I'm very sure that your external filter does a great job with lots of unwanted contaminants, I have serious doubts that it can "prevent hard water scale." That's a job for a water softener.
But if it works for you... then great.
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I use an 10" inline Camco Taste Pure water filter that takes out sediment, metals, bacteria, odor, etc., followed by 7" inline antiscale filter. Easy, inexpensive, and has been doing a great job for many years of ownership of 3 RVs.
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Yesterday, 05:29 AM
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#13
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Winnebago Camper
Join Date: Jul 2022
Posts: 17
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Quote:
Originally Posted by Bobn1957
The filter should be replaced every six months or so, use the old one for winterizing and a new one in the spring!
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No, do not leave the filter in over the winter! You cannot drain it and if you allow it to freeze, the filter will be damaged and it may damage the head.
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