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05-16-2019, 09:00 AM
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#1
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Junior Member
Join Date: Mar 2018
Posts: 17
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Fresh water tank fills when connected to city water.
2018 forester 2401WS MBS. Does anyone know where the check valve is that prevents holding tank from filling when connected to city water?
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05-16-2019, 09:09 AM
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#2
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Senior Member
Join Date: Apr 2015
Location: Middle GA
Posts: 1,289
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It is in the water pump itself (normally). That is why some of us add our own, since the ones in the pump fail quite often.
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Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2016 Ram 3500 Laramie 4X4 6.7 Cummins Diesel
Never Enough Time Camping!!
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05-16-2019, 11:27 AM
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#3
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Senior Member
Join Date: Sep 2015
Location: Bend
Posts: 331
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Which tank is filling, holding or fresh water?
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John Craft
dogpa
2016 Solera 24R
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05-16-2019, 11:42 AM
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#4
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Senior Member
Join Date: Sep 2011
Location: Langley, BC
Posts: 903
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Bad check valve at pump. Add a new one next to pump. We never use our FW tank and installed a shutoff valve instead. The tank used to fill up on it's own from the day we bought the TT new.
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Gil & Deb & Dougal the Springer Spaniel
Langley, BC
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05-16-2019, 11:45 AM
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#5
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,587
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Quote:
Originally Posted by dogpa
Which tank is filling, holding or fresh water?
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Thread title says " Fresh water tank".
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69
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05-16-2019, 11:47 AM
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#6
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Senior Member
Join Date: Sep 2015
Location: Bend
Posts: 331
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Yea that was the confusing part as the body said holding tank. Makes a difference.
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John Craft
dogpa
2016 Solera 24R
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05-16-2019, 11:50 AM
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#7
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,587
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Quote:
Originally Posted by dogpa
Yea that was the confusing part as the body said holding tank. Makes a difference.
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Got it. That's why I prefer gray, black, fresh, etc., instead of "holding tank" which, as you point out, is somewhat ambiguous.
__________________
2015 FR Wildcat 295RSX / GMC Sierra
Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 = 111/'19 = 86/'20 =108/'21 = 115/'22 = 135/'23 = 78; Booked for 2024 = 69
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05-16-2019, 03:01 PM
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#8
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Senior Member
Join Date: Aug 2013
Location: Orange Park Fl.
Posts: 1,876
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Quote:
Originally Posted by tom848
2018 forester 2401WS MBS. Does anyone know where the check valve is that prevents holding tank from filling when connected to city water?
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As others have said it is in the pump. Turn off city water and run onboard pump. Many times that is all that is needed to reset check valve.
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2014 Solera 24R
USN Retired
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05-16-2019, 03:16 PM
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#9
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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Quote:
Originally Posted by Mr. Dan
Got it. That's why I prefer gray, black, fresh, etc., instead of "holding tank" which, as you point out, is somewhat ambiguous.
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That goes for calling them black water, fresh water and grey water tanks. They all hold water, it's just that 2 of them have extra ingredients.
__________________
Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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05-16-2019, 03:43 PM
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#10
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Senior Member
Join Date: Mar 2016
Location: Powell Butte, Or.
Posts: 334
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Common problem on these units. I have had this happen more times than I care about while traveling. What these people said will fix the issue.
__________________
2017 Tiffin Allegro Red 33AA
2019 Tiffin 32SA (traded)
2017 Sunseeker MBS 2400R (traded)
2008 Jeep JKS
Ready Brute Elite / Blue Ox BP
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05-16-2019, 05:35 PM
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#11
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Junior Member
Join Date: Mar 2018
Posts: 17
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Fresh water tank fills when connected to city water.
Thanks all. I have tried shutting of the city water and ran the pump several times. Still leaking over to the fresh water tank. Will inspect the pump next.
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05-16-2019, 07:23 PM
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#12
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Senior Member
Join Date: Feb 2015
Location: Piedmont SD
Posts: 95
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I had a tt 4 years ago that didn't have a gravity fill inlet on the outside of the camper. To fill the fwt, I had to connect to city water and open a faucet inside the kitchen sink cabinet. If I didn't remember to close that faucet, my fwt would fill every time I camped with full hook-ups.
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05-25-2019, 07:46 AM
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#13
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Senior Member
Join Date: Jul 2018
Posts: 110
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Quote:
Originally Posted by Mr. Dan
Thread title says "Fresh water tank".
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You are my new friend
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05-25-2019, 08:39 AM
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#14
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Senior Member
Join Date: May 2017
Posts: 5,712
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Quote:
Originally Posted by ben31
It is in the water pump itself (normally). That is why some of us add our own, since the ones in the pump fail quite often.
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39 years and never had one fail.
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05-25-2019, 11:20 AM
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#15
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Junior Member
Join Date: Mar 2018
Posts: 17
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Installed a new inline check valve I was able to find in an RV store. Problem solved.
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05-25-2019, 12:49 PM
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#16
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Senior Member
Join Date: Nov 2014
Location: Ozark, MO
Posts: 386
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On my previous unit, a 24R, the FW tank would fill if I left to switch to the water pump in the ON position. It would not fill if the pump was turned off.
__________________
Mark & Susan
Former MBS 24R and 2401W Owners
Just recalibrating our camping set-up for now!
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05-29-2019, 10:52 AM
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#17
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Senior Member
Join Date: Apr 2015
Location: Middle GA
Posts: 1,289
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Quote:
Originally Posted by tom848
Installed a new inline check valve I was able to find in an RV store. Problem solved.
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Great to hear!
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2016 Ram 3500 Laramie 4X4 6.7 Cummins Diesel
Never Enough Time Camping!!
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