Thread Tools Display Modes
Old 06-07-2014, 06:02 PM   #1
Join Date: May 2014
Posts: 37
2011 390BH Tank Levels

Our black tank shows full even after we just dumped.

I've been reading the forum and see many suggestions ranging from tide/softener to water + ice to drive around.

What has worked best for you? Have any of you installed the Horst Probes to replace the existing ones? Do they work well and are they easy to install to the tanks?

jakedempsey is offline   Reply With Quote
Old 06-07-2014, 09:26 PM   #2
Senior Member
Campin Cajun's Avatar
Join Date: Mar 2013
Location: Cut Off, La.
Posts: 1,830
I've haven't had a problem with mine, but from what I read the water and ice works the best.

2013 Berkshire 390BH
Campin Cajun is offline   Reply With Quote
Old 06-07-2014, 10:21 PM   #3
Senior Member
Dbt803's Avatar
Join Date: Jun 2010
Location: Peekskill, NY
Posts: 373
My worked fine until I tried the softener and now it reads 3/4 full even after dumping. I have yet to try the ice cubes but I have heard that works good.
"Midnight Pearl" - 2011 Berkshire 390 BH
Dbt803 is offline   Reply With Quote
Old 06-08-2014, 05:18 AM   #4
Senior Member
fonzie's Avatar
Join Date: Sep 2010
Location: Eastern Ontario
Posts: 3,861
Here is info on Horst probe installation

Horst tank Probe Installation

I have used the Geo method to clean tanks and so far so good....

geo method??
2011 Rockwood 8319SS with ProPride 3P hitch/GoodYear Marathons/TST TPMS 507
2008 F250 Lariat CC SB 6.8L V10 4.10 axle ratio (NITTO TERRA GRAPLER G2 LT275/65R20E)
Yamaha 3000iseb generator:Progressive Ind. EMS-HW30C : Eastern Ontario
Nights Camped:2012(36) 2013 (17) 2014 (18) 2015 (18) 2016 (36) 2017 (32) 2018 (42)
fonzie is offline   Reply With Quote
Old 06-08-2014, 08:32 AM   #5
2011 Berkshire 390BH
Superchief's Avatar
Join Date: Aug 2011
Location: Lancaster, NY
Posts: 1,063
I use the Geo method also. I also dump a 5 gallon bucket of water down the toilet before I dump. The other thing I do, is hook a hose to the "cleaner" connection and make sure it does not have a limiter on it and spray the black tank for about 30 minutes. I will close the black tank valve for 5 minutes at a time to let the Tank fill with some water and dump again. Just make sure you don't get disturbed and forget what you are doing. lol. Craig

Finally completed all State visits in August 2011 with a trip to North Dakota.
Superchief is offline   Reply With Quote
Old 06-15-2014, 12:03 PM   #6
Senior Member
Join Date: Jan 2014
Posts: 157
I dump then fill with fresh water for ten minutes make sure you set a timer. I let it stay full for as long as I can for a few hours if possible. Then dump and rinse.

Sent from my GT-N8013 using Forest River Forums mobile app

jrlebaron is offline   Reply With Quote

390bh, 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

» Featured Campgrounds

Reviews provided by


This website is not affiliated with or endorsed by Forest River, Inc. or any of its affiliates. This is an independent, unofficial site.

Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 12:15 AM.