Reply
 
Thread Tools Display Modes
Old 06-07-2018, 08:48 AM   #1
Junior Member
 
Join Date: Sep 2017
Posts: 28
Grey tank flushing

A newbie question. We have a 2800qs and I can see the black tank flush hose connection. I have used this connection and opened the black tank dump valve and it seemed to flush out the black tank. I let it run until the water ran clear. My question is where and how do you flush the grey tank? Thanks.
__________________

Tom C 47 is offline   Reply With Quote
Old 06-07-2018, 08:51 AM   #2
Pickin', Campin', Mason
 
5picker's Avatar
 
Join Date: Aug 2015
Location: South Western PA
Posts: 9,896
Grey tanks shouldn't need flushing as it is only liquid and no solids.

We try not to dump food scraps or crumbs in the sink too.
__________________

__________________
_________________________________________
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '16=46 '17=30 '18=51 '19=36
5picker is offline   Reply With Quote
Old 06-07-2018, 09:03 AM   #3
Senior Member
 
ben31's Avatar
 
Join Date: Apr 2015
Location: Middle GA
Posts: 1,254
Shouldn't need to flush that tank. You shouldn't have a lot of solids in them to warrant the need for flushing.

If you do have a lot of solids or grease in them, you can fill them up with water and let them drain again.

Most try to not to dump any food scraps, grease, etc. down them. That would be the only reason you would need to flush it.
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat SuperCrew 4X4 6.4 Diesel
Never Enough Time Camping!!
ben31 is offline   Reply With Quote
Old 06-07-2018, 09:05 AM   #4
Senior Member
 
Join Date: Jul 2010
Location: Waynesville
Posts: 13,889
Gray-Galley tanks can be "Worse" than any Black tank! The galley tanks can "Ferment" way before the need to Dump in regards to Full! Youroo!!
__________________
youroo is offline   Reply With Quote
Old 06-07-2018, 09:11 AM   #5
Denver To Yuma In 90 Days
 
Join Date: Mar 2018
Location: Yuma, Arizona
Posts: 3,882
If you do dishes in your RV...you will get food particles in the gray tank.

The best way to get the solids out of the gray tank is to let it get mostly full and let it drain completely.

This causes that 'swirl' (like you see in a sink drain when the water is draining out) in the tank, which will draw most of the solids out of the gray tank.
JohnD10 is offline   Reply With Quote
Old 06-07-2018, 09:11 AM   #6
Senior Member
 
ben31's Avatar
 
Join Date: Apr 2015
Location: Middle GA
Posts: 1,254
Agree, but "fermenting" doesn't mean it needs to be flushed. Just dumped.
__________________
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2008 F250 Lariat SuperCrew 4X4 6.4 Diesel
Never Enough Time Camping!!
ben31 is offline   Reply With Quote
Old 06-07-2018, 09:11 AM   #7
Site Team
 
Kaadk's Avatar
 
Join Date: Apr 2013
Posts: 5,173
Grey tanks tend to have a fair amount of soap in it, since it's for showers, hand washing and dishes. So they tend to keep themselves fairly clean as long as you're not treating the drain like the garburator at home.

For piece of mind, I also dump a little TST Grey Water treatment down a drain 1 or 2 times a season, usually just before a long drive so it can slosh around.
__________________
There's no use crying over spilt milk... unless it's on your keyboard.
Kaadk is offline   Reply With Quote
Old 06-07-2018, 09:34 AM   #8
Senior Member
 
Join Date: Jan 2015
Location: eastern NC
Posts: 1,439
Quote:
Originally Posted by Tom C 47 View Post
... My question is where and how do you flush the grey tank? Thanks.

gray tanks can be flushed by adding an after market flushing system, ..."quickie flush" works very well, and is easy to install ... I've installed four of them on previous trailers which had no flushing system at all and was very satisfied with how well they worked, ... price now is the lowest I've ever seen them $15.06, usually between $25/$28, Walmart and Amazon are the same, ...



https://www.amazon.com/Camco-40123-Q...=quickie+flush
__________________


fella10 is online now   Reply With Quote
Old 06-09-2018, 05:12 AM   #9
Senior Member
 
trdutch's Avatar
 
Join Date: Jul 2014
Location: Lake Wylie
Posts: 501
Just make sure you close your grey valve the (last day of your trip) right before your last shower
It’s just me and My wife
Two showers worth of soapy water “flushed” out at the camp drain at tear down will keep the grey pretty clean.
It’s such a ritual for us the last night my wife always reminds me to close the grey and sometimes I actually already remember
__________________
I never saw a Hearse towing a Trailer
'71 Dads VW camper pop up Van
'78.....tents
'93 Coleman pop ups (I'm Dad)
'04 Fleetwood Jamboree 26q
'14 Sunseeker 2860DS
trdutch is offline   Reply With Quote
Old 06-09-2018, 07:29 AM   #10
Denver To Yuma In 90 Days
 
Join Date: Mar 2018
Location: Yuma, Arizona
Posts: 3,882
Quote:
Originally Posted by trdutch View Post
Just make sure you close your grey valve the (last day of your trip) right before your last shower
It’s just me and My wife
Two showers worth of soapy water “flushed” out at the camp drain at tear down will keep the grey pretty clean.
It’s such a ritual for us the last night my wife always reminds me to close the grey and sometimes I actually already remember
Just like the black tanks, it is not a good idea to leave the gray tanks open all of the time.

You should let it fill and dump it when needed.

Here is an article and video about this (pay special attention around 3:00 minutes into the 5:00 minute video):

Why to keep your RV's gray tank closed when hooked up - RV Travel

My gray tank filled up last night and since I'm leaving tomorrow morning I dumped about 1/2 so I can use the gray water to back flush the black tank and rinse out the drain hose.

By the by...

To flush out the gray tank you'll just need to fill it up with water and drain a couple of times.

I've used my fresh water tank filler hose and run it through the bathroom sink drain on high force to blast water into the gray tank.
__________________

JohnD10 is offline   Reply With Quote
Reply

Tags
flush, tank

Thread Tools
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


Disclaimer:

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




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 09:29 AM.