Jayco RV Owners Forum
 


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-01-2019, 07:29 PM   #1
Junior Member
 
Join Date: Aug 2018
Location: Niagara Falls
Posts: 13
Perplexing Grey tank problem

So...I went out in my 5th wheel this week. I started out with two empty grey tanks. I had a full hookup site and opened both grey tanks as soon as I hooked up.

The night before we broke camp, my DW told me that water was backing up the kitchen sink drains and the tank monitor was reading 2/3 full?!?!?!

I checked the outside tank levers and confirmed that they were in the open position. I closed both valves to accumulate enough water to clean out my sewer line after draining the black tanks the next morning. One grey tank (bathroom shower) had a lot of water in it; however the kitchen grey tank had little water in it, despite reading 2/3 full.

At the end of tank emptying, the kitchen grey tank went from 2/3 to a 1/3 reading????

Questions:

1. How could my kitchen sinks back up and read 2/3 full, when the tank valve was open the whole time?

2. Why is it still reading 1/3 full after emptying?
__________________

DJP6371 is offline   Reply With Quote
Old 08-01-2019, 08:31 PM   #2
Member
 
Join Date: May 2018
Location: PNW
Posts: 42
Clean your sensors first, add some dish soap in each tank with them about 1/3 or so full before you drive to your camp site.
__________________

__________________

2014 Ford F-150 HDPP, Max Tow, 5.0, 373.
2011 Jayco Jay Flight 28BHS
ToppDogg is offline   Reply With Quote
Old 08-01-2019, 08:35 PM   #3
Senior Member
 
oldmanAZ's Avatar
 
Join Date: Dec 2014
Location: AZ
Posts: 11,209
Hmmm??? Please let us know the model number of your 5th wheel. Someone may have helpful information.
__________________
Sherm & Terry w/rescue Eydie (min Schnauzer) & Charley (std Poodle)
2015 Jay Flight 27RLS, GY Endurance (E), Days: 102 '15, 90 '16, 80 '17, 161 '18, 365 '20
2006 Ford F350 PSD, 4WD, CC, LB, SRW, Cmpr. pkg, Equal-i-zer 4-p, ContiTrac TR
Full timing: Some will think you're crazy, some will be envious, just enjoy the freedom!
oldmanAZ is offline   Reply With Quote
Old 08-01-2019, 09:19 PM   #4
Senior Member
 
AKRUEBBE's Avatar
 
Join Date: Apr 2018
Location: Adobe Village RV Park, Yuma
Posts: 1,911
Bottom line, the tank sensors suck! When I empty my grey tanks, the sensors still show 1/3 full. Don't know why the industry has not come up with a more reliable system to detect the capacity. Some sort of "dip stick" would be a lot more reliable!
__________________
AL & JANET KRUEBBE
2019 PINNACLE 37RLWS
2018 NORTH POINT 315RLTS (TRADED)
2017 RAM 3500 DRW DIESEL/AISIN 4.10 AIR BAGS
B&W COMPANION TURN OVER BALL HITCH
Formerly from Sequim, WA
AKRUEBBE is offline   Reply With Quote
Old 08-02-2019, 05:58 AM   #5
Senior Member
 
Joan617's Avatar
 
Join Date: Nov 2018
Location: Florida for Winter, then TX for Crack
Posts: 478
Have you had work done on your tanks? Others here have reported finding blockages from items left in tanks such as waste plugs from hole saws after having fittings installed.


Someone else in the family fell in with a bunch of facebook RV conspiracy theorists and as such, not even coffee grounds go down the sink. I go along with it but we use a lot of paper towels.


We've learned to largely ignore sensors as well. We open the greys when doing laundry just to be safe. But if you had a back-up when you know the valves were open, that sounds like a physical blockage.


Once in my city office condo we had an unexplained back up in storm drain. A plumbers optical scope and camera found a wood 2x4 scrap that had clearly been in the pipe for years but one day through a trick of bad luck created a flapper valve in an elbow. Weird things happen.


Angus
__________________
Joan & Angus Campbell
Hunkering down in rural AL, hiding from the bug!
2019 Pinnacle 36SSWS
2019 F350 DRW Lariat CC Long Bed Diesel "Sheila"
4 Chihuahuas and 4 cats
We don't camp, we don't glamp, we LIVE.
Joan617 is offline   Reply With Quote
Old 08-02-2019, 06:32 AM   #6
Senior Member
 
Screwby's Avatar
 
Join Date: Jun 2016
Location: Indiana
Posts: 1,085
As said above, the sensors are junk. You can not rely on them for accurate readings whatsoever. Mine haven’t worked correctly from about the second trip out 3 years ago. You can either upgrade to a better sensor which sometimes is labor intensive or learn to live with it like the other 80% of us. I know my grey tank is almost full when my sinks start draining slow and gurgling or my shower stops draining. You’ll get a “feel” for it with more experience.
__________________
1999 Suburban 2500 4x4
2016 Jayflight 23RB Elite, Fiberglass, Polar Package
400w Renogy RV solar kit w/ Bluetooth, 100w Renogy solar suitcase
430 amp/hr 6v battery bank
1000w Renogy hard wired inverter
2011 F350 Lariat, DWR 4x4, 6.7 turbo diesel
2017 Open Range, Mesa Ridge 374BHS
Screwby is offline   Reply With Quote
Old 08-03-2019, 05:53 AM   #7
Member
 
Join Date: Sep 2018
Location: Wake Forest
Posts: 98
The real issue is that both tank valves were open yet "water was backing up the kitchen sink drains". It almost sounds like one gray tank was draining into the other (not sure if this is possible). I personally never leave my valves open. You never know what might make its way into your empty tanks. Anyway, as long as they do empty as expected, one at a time, I wouldn't worry about it.

Dave
__________________

2018 Ford F350 6.7 SRW
2018 Jayco North Point 315RLTS
dkegel is offline   Reply With Quote
Old 08-03-2019, 06:49 AM   #8
Senior Member
 
TxLoser's Avatar
 
Join Date: Feb 2017
Location: DFW
Posts: 953
So, both were open, and not draining(not normal). However the confusing part is where you stated you went to break camp and closed both to accumulate water to clean the hose post black dump. Was one tank already empty at that point? Did cycling the valves move something that then allowed the tanks to drain. Confirmed by a clear elbow? On my unit, there’s a third valve where the hose connects. If I open both grey tanks and forget that, it won’t drain. Is that a possibility? Don’t mean to insult anyone’s intelligence. Just thinking of any and all possibilities. Also, when dumping the pressure would work it’s way through any obstacles you created laying the sewer hose out incorrectly. It is possible the hose had an odd bend or too much uphill to be overcome by the moderate pressure of just running a sink or a quick shower.
__________________

__________________
2019 Eagle 321RSTS
2019 Chevy 3500HD SRW Dmax
TxLoser is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Jayco, Inc. or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 11:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright 2002-2016 Social Knowledge, LLC All Rights Reserved.
×