|
07-27-2011, 04:09 PM
|
#1
|
Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
|
Backflow preventer for tank rinse
Pic. of valve that blew apart inside the secret compartment and flooded the bathroom! Youroo!!
|
|
|
07-27-2011, 04:40 PM
|
#2
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Hey! That's what I have been looking for.
Mine leaks too but not for long. Gonna get a brass one and change it out.
Did you change yours yet?
Any advice?
Thanks for posting the photo.
Bill
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
07-27-2011, 04:46 PM
|
#3
|
Senior Member
Join Date: Dec 2007
Location: Eastern Oklahoma, USA
Posts: 2,618
|
My '09 Rockwood had one and it was bad from the start. It was located behind a panel in the street side rear pass thru.
I flooded the carpet in the bedroom twice before I found it!
|
|
|
07-27-2011, 06:39 PM
|
#4
|
Senior Member
Join Date: Aug 2009
Location: Northern Colorado
Posts: 508
|
I think most of them are crap...my first one failed...noticed water dripping from corner of trailer...was spraying inside and luckily headed towards the corner. Dealer replaced it. Now a year later, noticed the same thing the last time I used it. I'll replace it with something better (brass maybe) this time and hope it lasts. Great idea and helpful when it works.
__________________
Tom
2004 Fleetwood Providence 38U
currently not towing a toad
|
|
|
07-27-2011, 06:48 PM
|
#5
|
Senior Member
Join Date: Oct 2009
Location: Pilot Mountain NC
Posts: 558
|
Quote:
Originally Posted by youroo
Pic. of valve that blew apart inside the secret compartment and flooded the bathroom! Youroo!!
|
Forest River had a bunch of bad back flow preventers a while ago, mine was also bad.
__________________
2013 Prime Time 230 FBS
Days camped in 2013: April to November
Days camped in 2014...about 40
Days camped in 2015...more than 2014!!
|
|
|
09-06-2011, 05:16 PM
|
#6
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Can I use this to replace my black-water-rinse backflow preventer?
Backflow Preventer - $10.53
Bill
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
09-06-2011, 07:47 PM
|
#7
|
Senior Member
Join Date: Jul 2009
Location: Elk Grove, CA.
Posts: 285
|
Been there done that already.
Uploaded with ImageShack.us
__________________
Bill
2020 GMC Duramax-3500HD 4x4 CrewCab
B&W Companion 25K Fifth Wheel Hitch
2010 Wildcat 28RKBS (West Coast Model)
56 Gallon Titan Tank
|
|
|
09-06-2011, 09:42 PM
|
#8
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Quote:
Originally Posted by bsmall
|
Thanks for the picture, very helpful.
Any advice for installation?
Bill
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
09-06-2011, 10:18 PM
|
#9
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
Quote:
Originally Posted by youroo
Pic. of valve that blew apart inside the secret compartment and flooded the bathroom! Youroo!!
|
what was it on?
on mine the one on the black water flush looks more like a vacuum breaker. i didn't really examine it though.
when we required back flow preventor at my former place of employment, it consisted of 2 check valves in series with a pressure release between.
|
|
|
09-06-2011, 11:51 PM
|
#10
|
Senior Member
Join Date: Jul 2009
Location: Elk Grove, CA.
Posts: 285
|
Quote:
Originally Posted by fivecodys
Thanks for the picture, very helpful.
Any advice for installation?
Bill
|
I just had a little water trying to weep thru the threads and make a drip about every minute, so i just kept tightening it so far so good.
__________________
Bill
2020 GMC Duramax-3500HD 4x4 CrewCab
B&W Companion 25K Fifth Wheel Hitch
2010 Wildcat 28RKBS (West Coast Model)
56 Gallon Titan Tank
|
|
|
09-07-2011, 06:14 AM
|
#11
|
Senior Member
Join Date: Jul 2010
Location: Waynesville
Posts: 14,428
|
Quote:
Originally Posted by jimh
what was it on?
on mine the one on the black water flush looks more like a vacuum breaker. i didn't really examine it though.
when we required back flow preventor at my former place of employment, it consisted of 2 check valves in series with a pressure release between.
|
Dont know if this is what you are asking but it was on a (V-Lite) or it was on the (black water rinse). I called it a (valve),they may call it a (vacuum breaker) or( check valve) at the time I didnt care,it was failing and flooding my trailer. Two ckeck valves and a pressure relief valve would be overkill,and also need another hole to be drilled in the floor for water discharge. Youroo!!
|
|
|
09-07-2011, 07:57 AM
|
#12
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
i can imagine when ur chasing a leak ur not worried abt the technicalities.
i was wondering if it was on the water inside the trailer. what i have is external between the shell and the tank. no chance of getting on the inside of the trailer.
i haven't taken a close enough look at what i have; it appears that it drains the line when the pressure is off of it.
|
|
|
09-07-2011, 09:08 AM
|
#13
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Quote:
Originally Posted by bsmall
I just had a little water trying to weep thru the threads and make a drip about every minute, so i just kept tightening it so far so good.
|
I'm going to order the part today.
I will report back.
Thanks for the help.
Bill
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
09-07-2011, 02:02 PM
|
#14
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
i looked at mine and have the same thing. just outside next and above the tank. u wouldn't want a vent inside on the black. they do put vacuum breakers on the inside that go to the gray (good argument for not contaminating gray tanks w/blk water).
what i was getting at is that a check valve is not a back flow preventer. it has to be used in conjunction with something else or another check valve to be a back flow preventer.
in ur photos, backflow prevention is accomplished by the loop and the check. if u cut out the loop, u wouldn't have backflow prevention.
sellers will call the check a back flow preventer because most think of them that way.
|
|
|
09-07-2011, 03:12 PM
|
#15
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Quote:
Originally Posted by jimh
i looked at mine and have the same thing. just outside next and above the tank. u wouldn't want a vent inside on the black. they do put vacuum breakers on the inside that go to the gray (good argument for not contaminating gray tanks w/blk water).
what i was getting at is that a check valve is not a back flow preventer. it has to be used in conjunction with something else or another check valve to be a back flow preventer.
in ur photos, backflow prevention is accomplished by the loop and the check. if u cut out the loop, u wouldn't have backflow prevention.
sellers will call the check a back flow preventer because most think of them that way.
|
Well..I'm confused now.
Is the photo a one way valve? Or, does it serve as a vent also?
It does have a odd shape. I can't imagine venting black tank gas into the trailer.
Now my head hurts!
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
09-07-2011, 03:59 PM
|
#16
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
the one by youroo looks like a spring loaded check.
the one by bsmall looks more like 2 checks. if he has changed the brass one, he would be able to tell more abt what he found.
with the loop the check should be enough insurance. only other thing, u need to see if the check is dependent on position. some will only work if mounted vertically. depends on how it is made inside.
as far as i can tell, mine isn't vented. it was very difficult to see in there. if i had to replace it, i would examine it more closely. i would tend to replace in kind (except for the plastic). there is too much abt plumbing and the why's and how's i don't know. was surprised to find vacuum breakers hidden inside the cabinet.
until abt 15 yrs ago, i didn't know that a check and a backflow preventer weren't one in the same. the term showed up on a line test sheet and i asked why they didn't just say check. was told there was more to the backflow preventer.
|
|
|
09-07-2011, 06:14 PM
|
#17
|
Senior Member
Join Date: Feb 2008
Posts: 324
|
Quote:
Originally Posted by jimh
the one by youroo looks like a spring loaded check.
the one by bsmall looks more like 2 checks. if he has changed the brass one, he would be able to tell more abt what he found.
with the loop the check should be enough insurance. only other thing, u need to see if the check is dependent on position. some will only work if mounted vertically. depends on how it is made inside.
as far as i can tell, mine isn't vented. it was very difficult to see in there. if i had to replace it, i would examine it more closely. i would tend to replace in kind (except for the plastic). there is too much abt plumbing and the why's and how's i don't know. was surprised to find vacuum breakers hidden inside the cabinet.
until abt 15 yrs ago, i didn't know that a check and a backflow preventer weren't one in the same. the term showed up on a line test sheet and i asked why they didn't just say check. was told there was more to the backflow preventer.
|
Ok, I think I understand. I would like to replace with the same type of part but when I call the dealer (60 miles away) I get put on hold forever and a day.
The dealer has replaced this twice already so there is no use putting another one in there.
If anyone knows of a place to check for parts, I am open to suggestions.
Thanks for the help.
Bill
__________________
2009 Flagstaff 8528 RKSS
2019 GMC 2500 HD Diesel
Pullrite Superglide 14K
"I've got a mind like a steele.. a......a steele......um.....uh...... what's that thing called again?
|
|
|
09-07-2011, 06:47 PM
|
#18
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
pull it and see what u have. depending on where u live. they shouldn't be that hard to come by. home depot, lowes. if u have a plumbing supply they will have it. a spring loaded check can be mounted any way.
|
|
|
09-07-2011, 08:21 PM
|
#19
|
Senior Member
Join Date: Jul 2010
Location: Lake Charles, La.
Posts: 1,536
|
the one listed by fivecodys in post #6 looks good. my only question is is it spring loaded.
there is also one by camco that is spring loaded at Amazon.com: Camco 23303 RV 1/2" Back-Flow Preventer: Automotive
in that service, i wouldn't look at a check valve or back flow preventer as being critical. u r probably going to put one on the end of ur hose as well.
if u have a trailer or rv supply place anywhere near u, they probably have it.
|
|
|
|
Thread Tools |
|
Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|