wheelman16
Boulder City, NV
Senior Member
Joined: 04/09/2009
View Profile
Good Sam RV Club Member
 Offline
|
When dumping my black tank it is very hard to open and close the valve. I tried lubricating the rod that slides in and out but not much difference. Is it time to replace the valve and if so is it just a matter of unbolting the old one and sliding it out then wedging in a new one? Thanks for the help, Bob.
|
Doug and Cassi Glass
Clifton Forge, VA
Senior Member
Joined: 02/20/2006
View Profile
Good Sam RV Club Member
Offline
|
I've seen several posts where folks have drilled a small hole in the plastic housing above the rod then screwed a zero fitting in there and give it a squirt once in a while.
I'd try that first. If you might end up replacing the valve anyway certainly nothing lost.
Make sure you dump and rinse well before removing the old valve. If you can, tilt that side up a much as you can to try to eliminate dribbles.
There are detailed posts on changing the dump valve.
|
2bzy2c
California
Senior Member
Joined: 02/15/2010
View Profile
Offline
|
Zirk fitting?
My advice is worth exactly what you paid for it.
|
dupreet
High Point, NC
Senior Member
Joined: 08/03/2007
View Profile
|
It sounds like it needs a cleaning at a minimum. There are four small bolts that hold the assembly together. Drain and rinse well and take it apart. You might be able to just clean residue out of the valve blade and channels to improve things...total replacements aren't too expensive.
Todd
Todd
1993 Ford E-350 pushed by a 1988 Wilderness 24' TT
|
SidKaye
Mt Dora Florida, Montreal QC for the Summer
Senior Member
Joined: 09/03/2003
View Profile
Good Sam RV Club Member
Offline
|
Thetford Drain Valve Lube
Sidney
2003 Dodge Ram 3500 SLT,48RE, 4:10,Cummins HO Diesel,Quad Cab,LWB,SRW,PacBrake,Prodigy, X-Monitor Gauges,Line-X,Bedsaver
2002 Excel,Ltd,30RGW,Hughes Autoformer,Honda Eu1000i, ClearSpot 4G+,
http://www.kayepics.com
|
|
|
restorodder
Pinckney Michigan
Senior Member
Joined: 01/07/2009
View Profile
Good Sam RV Club Member
Offline
|
Drain valve lube added to the tank, freed up ours. I add the lube after every other tank draining. I buy it from Camping World or Wall Mart. Other people use vegitable oil.
2008 Newmar Canyon Star - 2007 Dodge Dakota Toad - Ready Brute tow bar & brake system - one cat - Sassy 14
|
wheelman16
Boulder City, NV
Senior Member
Joined: 04/09/2009
View Profile
Good Sam RV Club Member
Offline
|
Thanks for the replies. I will also check for previous posts on the subject, completely spaced that option. Bob.
|
old guy
Oregon (pronounced Or e gun)
Senior Member
Joined: 03/15/2006
View Profile
|
I have been greasing my rod with a small hole drilled into the plastic just in line with the rod and insert a zirk fitting just like on the ball joints of a car or truck. did this on my last TT years ago and use it on this one too. works so nice.
|
Chuck&Gail
In the Colorado Mountains
Senior Member
Joined: 06/16/2004
View Profile
Good Sam RV Club Member
|
When mine gets hard to move, I DUMP FIRST. I then spray half a can of silicon spray up the dump pipe while operating the valve (plus a squirt on the rod). I then do the same with the other valve and the second half of the can. Works for us.
P.S. I have found Olive Oil works better in the tank than the coconut oil used in most commercial valve lubes.
Chuck
Wonderful Wife
Australian Shepherd
2010 Ford Expedition TV
2010 Outback 230RS Toybox, 5390# UVW, 6800# Loaded
Not yet camped in Hawaii, 2 Canada Provinces, & 2 Territories
I can't be lost because I don't care where this lovely road is going
|
crasster
Dallas
Senior Member
Joined: 07/06/2007
View Profile
Offline
|
There may be some kind of crud gumming it up on the inside. Take a power washer while valve is open, and spray out real good. Then close the valve spray it again. Then shoot some lube/wd-40 up in the valve and rod. See if that unsticks stuff.
4 whopping cylinders on Toyota RV's. Talk about great getting good MPG. Also I have a very light foot on the pedal. I followed some MPG advice on Livingpress.com and I now get 22 MPG! Not bad for a home on wheels.
|
|
|
