I went to sanitize my freshwater system for the first time on my 2020 MK2670 today. I shut the city water off and used the gravity fill hose inlet to fill it. Turned the pump on and everything worked fine. When I switched back to city water connection and pulled the white drain valve for the fresh tank to empty it. Water keeps trickling out in a steady stream, and for how long I've had it open, it should have stopped. Anyone else had this problem or any ideas?
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Fresh water tank not emptying completely.
Last edited by chrisopy; 06-18-2020, 12:44 AM.2020 Imagine MK2670
2020 Chevy Silverado 2500 Gas 6.6L -
Originally posted by Country Campers View PostThis is pretty common. These plastic tanks have plenty of corners and dips that will hold a little water. Leaving the valve open while traveling is a good way to empty the tank more completely.
Brian2020 Imagine MK2670
2020 Chevy Silverado 2500 Gas 6.6L
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Originally posted by chrisopy View Post
I thought maybe a bad check valve on the water pump at first. I replaced my water pressure regulator as well since it was old. Don't know if this could have been a potential problem when I tried the water pump with the old one. Not leaking as much now, but I'll keep an eye on it.
BrianBrian & Michelle
2018 Reflection 29RS
2022 Chevy 3500HD
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Originally posted by chrisopy View PostI went to sanitize my freshwater system for the first time on my 2020 MK2670 today. I shut the city water off and used the gravity fill hose inlet to fill it. Turned the pump on and everything worked fine. When I switched back to city water connection and pulled the white drain valve for the fresh tank to empty it. Water keeps trickling out in a steady stream, and for how long I've had it open, it should have stopped. Anyone else had this problem or any ideas?
If the OP will call GD Customer Service it is likely that they will ship a new one directly to you if willing to swap it out yourself.
Please keep us updated!
HowardForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
2017 Ford F-350 DRW, '19 315RLTSPlus
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The pump pickup doesn't pull water from the bottom of the tank, there's a few gallons left after the pump starts sucking air. This is to keep the pump from sucking any sediment that may be in the tank.2017 Imagine 2650 & 2019 F-250 (Got tired of the F-150)
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Originally posted by Country Campers View Post
I am a little confused , not hard for me though. If you are getting water trickling out of the fresh tank when hooked to city water then yes you may have a bad check valve on the water pump. I thought you meant when draining the fresh tank water kept trickling out for a while.
Brian2020 Imagine MK2670
2020 Chevy Silverado 2500 Gas 6.6L
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Originally posted by howson View Post
Country Campers -- I interpreted the question the same way you did. Now that I've read through this thread again I suspect chrisopy is correct about the pump. This is the same symptom (water tank filling when on city water) that GDRV-Emily had on her Imagine (remember her telling us about it?). The fix was a new pump.
If the OP will call GD Customer Service it is likely that they will ship a new one directly to you if willing to swap it out yourself.
Please keep us updated!
Howard2020 Imagine MK2670
2020 Chevy Silverado 2500 Gas 6.6L
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Originally posted by chrisopy View Post
It has seemed to stop after I did the above mentioned things. I've also read I could install a check valve on the inlet side, but I wasn't sure if this would solve the problem. Looking at the manual to the pump, it's a shurflow 4008, the check valve seems to be non-serviceable. I will keep an eye on it for now. I don't dry camp much and just wanted to check it out. If it does happen again, would you recommend a new pump or installing another check valve?
Bottom line: if the valve on the pump is going bad, get a replacement installed (through your dealer?) or call GD Customer Service directly and they will probably ship you one (if you're willing to do the work yourself).
HowardForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
2017 Ford F-350 DRW, '19 315RLTSPlus
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Originally posted by mbopp View PostThe pump pickup doesn't pull water from the bottom of the tank, there's a few gallons left after the pump starts sucking air. This is to keep the pump from sucking any sediment that may be in the tank.
chrisopy A check valve can certainly be held open by a piece of debris that then gets flushed away and the valve returns to proper operation.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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Originally posted by Cate&Rob View Post
Agreed that leaving a little liquid in the bottom of the tank to prevent the pump from picking up sediment is a "normal" thing to do and early GDRV products were built this way. Current production for some (I don't know about all) have a low point sump connection for power fill or pump supply which would not leave any liquid in the tank when the pump started to draw air. See attached picture.
chrisopy A check valve can certainly be held open by a piece of debris that then gets flushed away and the valve returns to proper operation.
RobForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Neil Citro
2018 Reflection 28BH Pepwave
2019 F350 6.7L Long Bed Crew Cab
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Originally posted by MidwestCamper View PostJust returned from a trip where the water pump was beginning to pull air prior to traveling back home. Once at home, and using a 5 gallon bucket I measured approximately 10 gallons of water from the tank drain on my 2600RB.
JimForum moderators are not GD employees--we are volunteers and owners presumably just like yourself. Unless specifically mentioned otherwise, we have nothing to gain should you choose to purchase a product or engage a service we discuss on this forum.
Neil Citro
2018 Reflection 28BH Pepwave
2019 F350 6.7L Long Bed Crew Cab
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ncitro
Hi Neil,
I think the upper loop is an (ineffective) attempt to control the surge pumping overflow.
Guest
Hi Jim,
That is exactly what happens on my Reflection. I still have over 5 gallons of water in the tank when the pump starts drawing air. Obviously neither of our rigs have the “sump” tank shown in the picture.
RobCate & Rob
(with Border Collies Molly & Angel + Kitties Hazel & Elsie)
2015 Reflection 303RLS
2022 F350 Diesel CC SB SRW Lariat
Bayham, Ontario, Canada
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