|
03-17-2020, 11:39 AM
|
#1
|
Silver Bullet
1986 34.5' Airstream 345
choctaw
, Oklahoma
Join Date: Mar 2006
Posts: 839
|
the smell of it all
There comes a time when you must work on the stinky side. The black water valve has been leaking for years. Now that the handle is getting harder and harder to pull/push it's time to do the dirty deed.
What to do?
First option: Replace seals/caskets ($20 each) I've read where this sometimes don't work and there goes $40 and have to start over,
Second option: replace valves ($60 each) But then the valves are glued. I have had luck with cutting and breaking plastic fitting out but being able to get the 34 year old plastic separated w/o everything breaking isn't likely. So with new valves would mean new tubing. But where to find that?
Looks like the whole assembly will come out by taking the 4 screws that holds the valve into the tanks. Then disconnect the mickey-mouse setup they did to couple handle rod to the gray water valve(looks like a piece of scrap sheet medal bent aroll the shaft
Guess I'll see what breaks as I tore it apart.
|
|
|
03-17-2020, 11:57 AM
|
#2
|
Rivet Master
2005 34' Classic S/O
2006 39' Land Yacht 396 XL
north blenheim
, New York
Join Date: Sep 2012
Posts: 2,847
|
Just tear it all out and replace everything from the tanks out to the sewer connection.....if you want to be real slick install the electrically operated valves, who knows they may also have remote key fob operated ones by now or even better a phone app so you can stand clear ! Regards, Bob
|
|
|
03-17-2020, 12:05 PM
|
#3
|
Rivet Master
1988 25' Excella
1987 32' Excella
Knoxville
, Tennessee
Join Date: Oct 2010
Posts: 5,119
|
The parts that are glued are cheap. Unscrew the valves from the tank and make a new assembly. I used PVC from Lowe’s instead of black ABS. I had to replace a set of valves that Airstream rebuilt. Replacing everything is about $200 in parts. Airstream charged $1000 for the rebuild that I had to replace. The valve bodies cracked. I put a Valletta fitting on the dump end. Yours does look easier to get to than mine was.
|
|
|
03-17-2020, 01:08 PM
|
#4
|
Silver Bullet
1986 34.5' Airstream 345
choctaw
, Oklahoma
Join Date: Mar 2006
Posts: 839
|
Quote:
Originally Posted by bobmiller1
Just tear it all out and replace everything from the tanks out to the sewer connection.....if you want to be real slick install the electrically operated valves, who knows they may also have remote key fob operated ones by now or even better a phone app so you can stand clear ! Regards, Bob
|
With the run on toilet around may need a self cleaning personal dump feature with an electric cleanup.
|
|
|
03-17-2020, 01:14 PM
|
#5
|
Silver Bullet
1986 34.5' Airstream 345
choctaw
, Oklahoma
Join Date: Mar 2006
Posts: 839
|
Quote:
Originally Posted by Bill M.
The parts that are glued are cheap. Unscrew the valves from the tank and make a new assembly. I used PVC from Lowe’s instead of black ABS. I had to replace a set of valves that Airstream rebuilt. Replacing everything is about $200 in parts. Airstream charged $1000 for the rebuild that I had to replace. The valve bodies cracked. I put a Valletta fitting on the dump end. Yours does look easier to get to than mine was.
|
These MH's don't have the covered tanks.
Next step is get outside and run a couple tanks of bleach water through them, The weather's not the best to play outside this week. Drive it out of the shop and it may sink up to the windows in the yard.
|
|
|
03-17-2020, 01:55 PM
|
#6
|
Rivet Master
1982 28' Airstream 280
Port Angeles
, Washington
Join Date: Aug 2008
Posts: 1,943
|
This is the rebuild i did on my 345. https://www.airforums.com/forums/f31...-183003-5.html It is post #90.
I used Valtera valves, $25-$30 each including hubs. The operating handles are 1/4"-20 thread so the Thetford handles screw right on if you like the original look. I drilled and threaded aluminum rod for extensions but you could use all-thread and coupling nuts.
I also used flexible rubber couplings https://www.homedepot.com/p/The-Plum...8264/306602211 for easy assembly and standard 3" ABS fittings and pipe.
You can see the repair in my tank fitting so i put the flexible coupling in boiling water for a few minutes and it softened enough to fit over the tank hub to eliminate trying to force the pipe inside the hub and causing it to crack again.
The rubber couplings give the set up some flex and makes valve repair/replacement easy.
__________________
Cheers, Dan
________________________________________
"Socialist governments traditionally do make a financial mess. They always run out of other people's money. It's quite a characteristic of them."
~ Margaret Thatcher ~
|
|
|
03-18-2020, 11:04 AM
|
#7
|
Rivet Master
1988 32' Excella
Robbinsville
, New Jersey
Join Date: May 2012
Posts: 3,166
|
The hub on the valve is held into the tank with a hose clamp. Went pretty easy replacing whole assembly valterra valves and home depot parts. Except for gaining access to do the work.
|
|
|
03-18-2020, 11:46 AM
|
#8
|
Stay CazuaL
2018 25' Flying Cloud
2014 19' Flying Cloud
Reseda
, California
Join Date: Aug 2014
Posts: 961
|
I use silicone lube on the piston for the valves. It helps.
|
|
|
09-09-2020, 06:03 PM
|
#9
|
Silver Bullet
1986 34.5' Airstream 345
choctaw
, Oklahoma
Join Date: Mar 2006
Posts: 839
|
Was about to order the Thetford valves #08709 and #08306 to start this project. 'Out of stock' seems to be the rule of the day.
Did find Valve #08709, #08706 and bayonet #VTS-440 at highskyrvparts.com. Guess I'll clip the 'order' tab and go.
Now the fun begins.
|
|
|
09-12-2020, 07:44 AM
|
#10
|
Silver Bullet
1986 34.5' Airstream 345
choctaw
, Oklahoma
Join Date: Mar 2006
Posts: 839
|
Got a email from 'high sky' that one of the valves is 'out of stock' and may take 4 weeks to be 'in stock' again.
That has been the story of everything I've tried to get this year...... Out of stock.... Again.
|
|
|
09-12-2020, 07:20 PM
|
#11
|
3 Rivet Member
1982 31' Airstream 310
Henniker
, New Hampshire
Join Date: Aug 2015
Posts: 215
|
. Try eBay.
__________________
1982 310 motorhome 502
Henniker New Hampshire
|
|
|
09-16-2020, 07:52 AM
|
#12
|
Rivet Master
Churubusco
, Indiana
Join Date: Nov 2017
Posts: 2,007
|
On my 310 the valves were held in with trempro/vulkem. Undo that hose clamp on the tank, and use a heat gun to loosen the sealant, and the valve should pull right out. Reinstalled with more sealant and a new valve, wasn't as hard of a job as I had dreaded, just required a lot of trips to the hardware store to puzzle over the right size pvc fittings
My swap starts here, replaced with all valterra
https://www.airforums.com/forums/f31...ml#post2210688
__________________
1983 Airstream 310 Class A Motorhome
-Rob
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
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 |
|
|
|
|
|
|
|
|
|
|
|