Free 7 Day Trial RV GPS App RV Trip Planner Campground Reviews RV Maintenance Free 7 Day Trial ×
 

Go Back   Keystone RV Forums > Keystone Fleet | Keystone RV Models > Travel Trailers
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 08-08-2015, 07:26 AM   #1
Jasonhughes04
Junior Member
 
Jasonhughes04's Avatar
 
Join Date: Jul 2015
Location: St Louis
Posts: 5
Black water flush

Just bought a new 2015 Laredo LHT 28BH. Tried the black water flush and got no water through the system. It was as if the water was not getting past the hose connection.

Any thoughts or does anyone know the plumbing diagram? Ive heard about the anti siphon valve being backwards but not sure where to look for it?
__________________

Jasonhughes04 is offline   Reply With Quote
Old 08-08-2015, 07:58 AM   #2
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 20,666
The anti-siphon valve is probably located beside the faucet connections under your bathroom sink. Open the vanity and you should find 4 PEX lines. One is hot water and one is cold water. They go to the faucet. The other two go "up behind the sink" and are connected to the anti-siphon valve. You "should be able" to push the PEX lines down into the basement to access the valve. Some owners have reported it installed backwards. Try that, if it doesn't work, then look for "kinks" in the line, either between the outside connection and the valve or between the valve and the black tank. .

NOTE: If you have a "outdoor water supply cabinet", you may have a valve to switch between city water/fresh tank fill/ black tank flush. You may have the valve in the wrong position to flush. just a thought since I'm not familiar with how your trailer is "optioned out".....

Good Luck
__________________

__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 08-08-2015, 10:52 AM   #3
Jasonhughes04
Junior Member
 
Jasonhughes04's Avatar
 
Join Date: Jul 2015
Location: St Louis
Posts: 5
Will check those out. I do have the "switch" valve for city and tank fill but dont recall a position for flush. Maybe i should try and just move it in another direction. When you say basement, are you referring to the cabinet or under the camper belly?
Jasonhughes04 is offline   Reply With Quote
Old 08-08-2015, 02:37 PM   #4
JRTJH
Site Team
 
JRTJH's Avatar
 
Join Date: Mar 2011
Location: Gaylord
Posts: 20,666
By basement, I mean the area "under the vanity". On fifth wheels, it's usually the rear (paneled in) area of the storage compartment. In travel trailers, it's the area "under the floor of the trailer that's usually covered by coroplast on the bottom. In either situation, it's the area "under the vanity floor" where the PEX tubing comes up, into the vanity.....
__________________
John



2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
JRTJH is offline   Reply With Quote
Old 09-23-2015, 11:53 AM   #5
Jasonhughes04
Junior Member
 
Jasonhughes04's Avatar
 
Join Date: Jul 2015
Location: St Louis
Posts: 5
Well i decided to take it in since i dont have any PEX tools to fool with. Glad i did. They found the valve was backwards and also found particulate in the water lines to the sprayers ( foam bits ). Anyhow, alls well now and it sounds like its working well when connected. Thanks for the insight.
Jasonhughes04 is offline   Reply With Quote
Old 11-30-2015, 05:21 PM   #6
golfpro
Senior Member
 
Join Date: Jan 2012
Location: Hermiston or
Posts: 128
mine didn't work either and I took mine out and put an inline one at the end of the water hose.
__________________

golfpro is offline   Reply With Quote
Reply

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
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by the Keystone RV Company or any of its affiliates in any way. Keystone RVģ is a registered trademark of the Keystone RV Company.


All times are GMT -8. The time now is 09:02 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
×