Black Tank Dump Valve is Sticking - Luxury Coach Lifestyles
Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
Thread Tools Display Modes
Old 11-12-2012, 05:01 PM   #1
Join Date: Dec 2011
Posts: 67
Default Black Tank Dump Valve is Sticking

A few days ago I dumped the tank it was pretty cold outside (37 F) well above freezing and the black tank valve was hard to pull. Today, it was about 39 F and the valve was VERY HARD to pull open. What do you experts suggest? Thanks in advance.

Jerry Hartley
MiracleJ is offline   Reply With Quote
Old 11-12-2012, 06:19 PM   #2
Viva Las Vegas JDR
Senior Member
Viva Las Vegas JDR's Avatar
Join Date: Aug 2010
Location: Las Vegas, NV
Posts: 118

If a dump valve is defective, it's a pretty easy job to replace it.

However the cause of the problem should be determined to avoid a recurrence in the future.

Do you flush your black tank thoroughly when dumping, using a transparent elbow to ensure all waste material is out of the tank? Do you leave the black valve open when parked? Have you ever washed out the black tank with hot water to ensure there is no build up of solid matter at the bottom? Do you think the valve is frozen to the gasket>

When replacing your valve, spray the gasket with silicone, and once a year, disassemble the valve to apply more silicone spray.

To solve your current situation, try applying heat using a hair dryer to the valve to see if it comes loose. If not, try running some hot water into the black tank.

Please let us know how you make out.

Jimmy Dean Ross
1988 Newell Coach
Viva Las Vegas JDR is offline   Reply With Quote
Old 11-13-2012, 04:05 PM   #3
The Newell
Senior Member
The Newell's Avatar
Join Date: Dec 2005
Location: Southern California
Posts: 1,018

Sometimes just lubing the shaft externally helps, but if you find yourself doing that almost every time you use it, it is probably time to replace it. Not too big a job, so replacing is just as easy as disassembling to lube the inside.
1976 Newell Classic (Sold)

Home Base: Riverside, CA

If anyone needs my contact info private message me and I will send it to you.

The Newell is offline   Reply With Quote
Old 11-15-2012, 02:17 PM   #4
Senior Member
lbrachfe's Avatar
Join Date: Jun 2011
Location: Home base is Palm Beach, Florida
Posts: 449

This valve always sticks if not heavily greased both inside and out. I have replaced my guts on all 3 and found plenty of gunk and paddle pieces which all contribute to particles running up the paddle shaft and greasing solves this
Larry & Hedy Brachfeld
2003 Double Slide, Detroit 60
Coach # 646
lbrachfe is offline   Reply With Quote

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Do you see a savings in fuel? Nara Queen General Technical Discussion 1 10-26-2012 04:19 PM
Newell Travels whats the worst road you've taken your Newell down? The Newell Life on the Road | Livin' in Luxury 9 08-19-2012 12:55 AM
Need a good mechanic kdnelson Running Gear, Brakes, Tires, Chassis and Pneumatic Systems 1 06-17-2011 01:33 PM
Electric Blind Motor Replacement prestadude Interior Works 1 11-28-2010 01:04 AM
Installed three new roof airs smagown HVAC 12 01-13-2009 04:12 PM

» Recent Threads
» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Newell Coach Corporation or any of its affiliates. This is an independent, unofficial site.

All times are GMT. The time now is 08:10 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2024, vBulletin Solutions, Inc.