Reply
 
Thread Tools Display Modes
Old 06-18-2019, 02:37 PM   #1
Junior Member
 
Join Date: Jun 2019
Posts: 4
Exclamation Black tank flush

I have a 2019 Wildcat Maxx 285RKX 5th wheel.

For the past 5 years I have been using a black tank flush on a previous trailer by ensuring that my valve is open and draining, I open the water flush hose to flush the black tank--at which point I can hear it flushing the tank.

On this 2019 Wildcat, I could not hear the tank flushing and it seemed to not be working at all. I clearly had pressure in the hose but no evidence that it was flushing (no clear water coming out the drain hose). The dealer told me that the black tank flush only works when you step on the toilet flush... that sure limits when I can flush given some of the sites for dumping don't allow enough room to open the door and let the step down.

Do I have bad information?
__________________

lx201 is offline   Reply With Quote
Old 06-18-2019, 02:45 PM   #2
Senior Member
 
Join Date: Jul 2017
Location: Georgia
Posts: 355
Dont have that exact trailer, but never heard of such. Mine (surveyor) does not require it. Also require 2 ppl. May be wrong but dont think so.
__________________

gbaldwin is online now   Reply With Quote
Old 06-18-2019, 02:51 PM   #3
Fulltime family RVer
 
ependydad's Avatar
 
Join Date: Nov 2011
Posts: 18,534
I've literally never heard of having to have someone step on the toilet pedal for the black tank flush to work.

If you aren't getting water to the tank from the black tank flush, often the culprit is a back-flow preventer under the sink or behind the shower wall.
__________________
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is online now   Reply With Quote
Old 06-19-2019, 08:26 AM   #4
Junior Member
 
Join Date: Jun 2019
Posts: 4
I certainly don't know the pluming of my trailer but does the black tank flush go through the backflow--I thought that it goes directly through to the black tank and did not touch the internal pluming?
lx201 is offline   Reply With Quote
Old 06-19-2019, 08:48 AM   #5
Site Team
 
Mr. Dan's Avatar
 
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 11,319
Quote:
Originally Posted by lx201 View Post
I certainly don't know the pluming of my trailer but does the black tank flush go through the backflow--I thought that it goes directly through to the black tank and did not touch the internal pluming?
I don't recognize your term "backflow" but the black tank flush line goes UP from the outside connection to a point at least 6" above the top rim of your toilet to a vacuum breaker/check valve and THEN down to the flush head in your black tank. We have seen reports of that vacuum breaker/check valve being installed backwards or of it having failed. Many units have this valve in the bathroom cabinet. Mine is behind the shower surround on the outside water.
See if you can find it and validate that it is installed in the right direction.
__________________
SEARCH is your friend!
FR Wildcat 295RSX / GMC Sierra

Nights Camped: '13 = 49/'14 = 74/'15 = 74/'16 = 85/'17 = 110/'18 =111/'19 = 40; booked = 49
Mr. Dan is online now   Reply With Quote
Old 06-19-2019, 09:09 AM   #6
Junior Member
 
Join Date: Jun 2019
Posts: 4
thank you, I will check that...
lx201 is offline   Reply With Quote
Old 06-19-2019, 10:25 AM   #7
Senior Member
 
Join Date: Mar 2018
Posts: 391
You received good advice above. Can you clarify "no clear water coming out the drain hose)". I assume you're getting no water of any sort coming out of the drain hose. Is that right?

If you are getting some flow, maybe the black tank flushing is working. It takes a long time for mine water to go clear.
Skip12 is offline   Reply With Quote
Old 06-19-2019, 10:41 AM   #8
Junior Member
 
Join Date: Jun 2019
Posts: 4
yes, you're correct it takes a while before you begin to see the water clear; however, in my case there is no evidence that the water is running, the "brown" water slows to a trickle with the black tank flush hose open. At the time is seemed as though there was a "valve" closed because full pressure from the hose but no evidence of flow... (new trailer - one month old).
lx201 is offline   Reply With Quote
Old 06-19-2019, 10:46 AM   #9
Junior Member
 
Join Date: Jun 2019
Posts: 4
Quote:
Originally Posted by ependydad View Post
I've literally never heard of having to have someone step on the toilet pedal for the black tank flush to work.

If you aren't getting water to the tank from the black tank flush, often the culprit is a back-flow preventer under the sink or behind the shower wall.
sorry Ependydad, I miss read your reply. I am going to find the check valve and see if that is where the problem is. At the time it seemed as though there was some type of valve or blockage preventing water flow...
lx201 is offline   Reply With Quote
Old 06-19-2019, 11:36 AM   #10
Fulltime family RVer
 
ependydad's Avatar
 
Join Date: Nov 2011
Posts: 18,534
Quote:
Originally Posted by lx201 View Post
sorry Ependydad, I miss read your reply. I am going to find the check valve and see if that is where the problem is. At the time it seemed as though there was some type of valve or blockage preventing water flow...
Mr. Dan did a 1000x better job than me at describing it. We're both talking about the same thing.
__________________

__________________
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
Checkout my site for RVing tips, tricks, and info | My family and I have fulltimed since June 2015
ependydad is online now   Reply With Quote
Reply

Tags
black, black tank, black tank flush, 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 11:33 AM.