Thread Tools Display Modes
Old 09-07-2016, 03:07 PM   #11
Senior Member
DouglasReid's Avatar
Join Date: Jun 2016
Posts: 153
The problem is most likely your probes. A film develops on them and causes them to sense water where none exists. You can take them out and clean them but the problem could also be a bit of toilet paper over the end of the probe causing them to once again, sense water where none exists.

On an older camper I had I changed the probes out. System worked perfectly til the film migrated down onto the probe from the wall of the black tank and once again, it was always 1/3 full.

I think the definitive answer is to change the probes but use the Valterra probes. They come with a shield on the top to protect the probe from toilet paper and the film sliding down the tank.

Here is a link to an eBay auction showing the probes. Im not advocating that you buy these, SHOP AROUND for them but they have a good photo of the probes. It IS NOT my auction either.

Valterra T21301VP Tank Probe Black Water 4 Pack | eBay

I know I protest too much but I don't want someone to accuse me of trying to sell you something when it is not true.

Good Luck!

Maurice, LA

2013 Wildcat Sterling 32RL
2008 Chevy Silverado 2500HD LT Diesel
2001 Cougar 281 EFS (sold)
1973 Layton 23' (sold)
DouglasReid is offline   Reply With Quote
Old 09-07-2016, 03:14 PM   #12
Senior Member
Join Date: Jan 2015
Location: eastern NC
Posts: 576
sometimes a good blasting is the best way to clean off the contacts, the link below is of a gadget that is designed for doing just that,....... stick it into the tank, point in the direction of the sensors and blast away,...... it might help

2015 Micro Lite 25KS
2015 F150 CrewCab
days camped: (2014....207) (2015....140) (2016....37, so far)
fella10 is online now   Reply With Quote

black, black water, tank, water, water tank

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

» Virginia Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 11:11 PM.