Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 04-15-2012, 11:06 AM   #1
Junior Member
 
Join Date: Feb 2012
Posts: 8
good lubricant for shut off valves?

Hey there! It would appear we have a small leak at our valve cut off. While running some tests, we noticed that both the grey & black water valves are very hard to push and pull. We've heard using things like wd40 can make the mechanism swell. Is this true? And if so, can someone suggest a lubricant we can safely use? We have a 1989 skyline Layton we bought 2 months ago and just started using. I am loving it! Thanks!
__________________

__________________
vocalmama is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 04-15-2012, 11:32 AM   #2
Senior Member
 
Wanabee FTer's Avatar
 
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Jul 2010
Location: Golden Village Palms, CA
Posts: 1,988
Blog Entries: 12
I use Shinitsu grease on all my rubber seals. It's expensive, but I have never found anything better. You should be able to use a silicone based spray lube like "rubber seal conditioner" available at Walmart's RV section.

You are correct, WD40 should never be used on rubber seals, it is a solvent not a seal conditioner.
__________________

__________________
John
'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord

Wanabee FTer is offline   Reply With Quote
Old 04-15-2012, 11:38 AM   #3
Senior Member
 
FRR2EYW's Avatar
 
Join Date: Mar 2008
Location: Front Royal, Va.
Posts: 391
If the seals are difficult to move or in doubt, I would suggest replacing them while they still work. This is something that can be very unpleasant in the event of a failure. Two new gates, knife valves, or whatever you want to call them are a small price to pay to avoid a black water shower. Trust me. Experience is a great teacher, the lessons are not usually forgotten.
__________________
Shawn M.
2011 Fleetwood Expedition
2014 Chevy Traverse
FRR2EYW is offline   Reply With Quote
Old 04-15-2012, 07:08 PM   #4
Senior Member
 
Damon Owners Club
Ford Super Duty Owner
Join Date: Apr 2008
Location: NAS Pensacola, FL
Posts: 329
Go to HD and get some plumbers silicone grease. The container is about the size of a silver dollar and not to costly. And like Brylcreme, just a little dab will do ya, with the vavle openned, apply to the shaft, exercise the valve, then relub. Should fix the problem. Just my two cents...
__________________
Ted Fulltiming in the DreamCatcher a
2008 Challenger 371PE on F53 w/ 2010 Cobalt
R'V there yet?
teddyu is offline   Reply With Quote
Old 04-15-2012, 07:18 PM   #5
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 28,528
At least one of the toilet chemicals (TST) contains coconut oil. I've never had a valve seal need replacing in the time I've been RV'ing (since 1957).
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 04-15-2012, 07:18 PM   #6
Senior Member
 
Shadowcatche's Avatar
 
iRV2 No Limits Club
Join Date: Nov 2010
Posts: 1,219
Never ever use anything that has any petroleum products to lubricate rubber, it will cause it to deteriorate. Silicone grease as recommended and a little known, chlorine. Chlorination of rubber makes is slippery.
__________________
Shadowcatche is offline   Reply With Quote
Old 04-15-2012, 07:40 PM   #7
Senior Member
 
mikf's Avatar
 
Winnebago Owners Club
Join Date: Jun 2010
Posts: 532
Quote:
Originally Posted by Wanabee FTer View Post
I use Shinitsu grease on all my rubber seals. It's expensive, but I have never found anything better. You should be able to use a silicone based spray lube like "rubber seal conditioner" available at Walmart's RV section
.

how do you get the grease on the seals of the holding tanks. or are you talking about something else?
__________________
Mike S.E. Ohio
mikf is offline   Reply With Quote
Old 04-15-2012, 11:18 PM   #8
Senior Member
 
Wanabee FTer's Avatar
 
Gulf Streamers Club
Ford Super Duty Owner
Join Date: Jul 2010
Location: Golden Village Palms, CA
Posts: 1,988
Blog Entries: 12
Quote:
Originally Posted by mikf View Post
.

how do you get the grease on the seals of the holding tanks. or are you talking about something else?
I use silicone grease to lube any rubber seals.
To tell you the truth, I have never tried to lube gate valves. Mine were sticky so I replaced them. New ones are cheap compared to the hassle of trying to lube the valve, and they are so easy to replace.

I have heard of people drilling a small hole at the top of the gate to be able to stick a silicone spray lube straw into it.
__________________
John
'98 Gulf Stream Sunsport 325, 7.5L Banks Power Pack, Koni FSD's, Air Bags, ReadyBrute Elite,
2000 Honda Accord

Wanabee FTer is offline   Reply With Quote
Old 04-16-2012, 01:31 AM   #9
"Formerly Diplomat Don"
 
Dutch Star Don's Avatar
 
Newmar Owners Club
Join Date: Apr 2005
Location: Moorpark, Ca.
Posts: 9,312
For about $30.00, you can buy two new valves. If yours are in an accessible area, you can replace them in about 20 minutes if you're handy. Its not worth trying to lube them if they're leaking or stiff.
__________________
Don & Mary
2014 Newmar Dutch Star - All Electric - 450 ISL
2016 GMC Canyon 4WD Crew Cab
Dutch Star Don is online now   Reply With Quote
Old 04-16-2012, 02:03 AM   #10
Senior Member
 
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,217
SuperLube is a good silicone based grease for rubber seals in water based plumbing. Its NSF approved so you can use it on potable water valves, etc., tho that's not a concern for the OP.

However, the valves likely have 4 bolts holding a flange & now hardened seals together, and subject to some calm jimmying on the adjacent plumbing pipes, are easily replaced by most DIY'ers. Obviously, empty the tanks & flush first. I did this on my Trek years ago, and valves went from way hard to deal with, twisting & wiggling & herfing so hard I thought I'd break something; after the fix the new valves slide sweet & easy. Great fixit.
__________________
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
EngineerMike is offline   Reply With Quote
Old 04-16-2012, 10:41 AM   #11
Senior Member
 
Larry & Rita's Avatar
 
Monaco Owners Club
Holiday Rambler Owners Club
Join Date: Oct 2010
Location: Tulalip, WA
Posts: 943
Over the years I've heard a number of "Great Ideas" from drilling a hole and installing a grease zert to a cup of vegetable oil in the tank prior to dumping.
Shade tree mech. are great people and what might seem to work for one won't work for another.
I have found the best "ounce of prevention" is to repalce the broken part and be happy.
New works over and over-repaired just prolongs the headache.
jmho
Larry
__________________
Don't pray for a blessing--Pray to be a blessing.
2006 Holiday Rambler Endavor 40 footer
Tulalip,WA
Larry & Rita is offline   Reply With Quote
Old 04-16-2012, 06:48 PM   #12
Senior Member
 
Tha_Rooster's Avatar
 
Join Date: Aug 2008
Location: Georgia
Posts: 4,517
If you have to break your valves down to grease with silicone, grease or anything else why not replace it while your there. I would try coconut oil and work the valve several times if it works great if not replace. There is nothing worst than a leaky black valve.
__________________
2007 Fleetwood Revolution LE 40V
Tha_Rooster is offline   Reply With Quote
Old 04-17-2012, 03:06 PM   #13
Member
 
Join Date: Nov 2002
Location: Richmond,MA
Posts: 89
try Fluid FilmŪ | Corrosion Preventative, Lubricant and Rust Inhibitor . Lanolin based rust preventative and lubricant. I use it on everything , can't see why it wouldn't work for this as well. I have no monetary investment other than what I spend buying it.
__________________

__________________
Have the Best Day You Can

Grumpy Dave is offline   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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


» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 06:33 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.