|
02-16-2015, 10:18 AM
|
#1
|
Montana Fan
Join Date: Sep 2006
Location: Milwaukie
Posts: 388
M.O.C. #6266
|
Black Tank Flush Not Working
As of today my problem is the flush head is plugged. See my last post to this thread.
About a year ago my flush unit would not work. Water was not getting through. I assumed it was the anti syphon unit but given where it is located I didn't really want to get into it. Well a couple days ago I decided to replace it until I saw how much a new one is so I thought I would see if I could figure out why it wasn't working. After making a larger hole in a wall behind the shower I could see the water was coming in but not out. Closer examination showed there was some rusty particles of metal behind the plunger and spring possibly blocking flow out. Pulled it out and got it all cleaned out but still didn't work. After trying several things it finally dawned on me nothing was getting through (tried blowing air) the pipe to the flusher and tank. So my question is does anyone have any ideas on this short of pulling the tank and replacing the flusher head?
|
|
|
02-16-2015, 10:58 AM
|
#2
|
Seasoned Camper
Join Date: Sep 2014
Location: Alvarado
Posts: 57
M.O.C. #14704
|
Well when mine broke I pulled it out of the wall behind the shower and just plumbed it straight to the tank and installed an external back flow preventer.
Took me about 30 minutes and whatever it cost me for the backflow preventer at home depot 10-15 bucks.
Cheers
|
|
|
02-16-2015, 11:45 AM
|
#3
|
Montana Master
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
|
If you can't get flow through the pex lines when connected together, then it's time to drop the bottom, take the input to the flush head off to see if flow makes it that far. Assuming it does...then prepare to cut pipes and drop the tank. No easy way out unless you have someone else do the work. John
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
|
|
|
02-16-2015, 01:23 PM
|
#4
|
Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
|
Although it is an installed option on your unit, and they do their job when they work ... I'd think about just how bad I needed it to be functional. Many of us have had RVs without the tank flush and have lived right on thru it. Flushing a couple of bowls full of water toward the end of dumping, mixing liquid Calgon with a gallon or two of water in the tank between campsites, and traveling with a bag or two of ice in a few gallons of water in the tank are options to consider. Some on the MOC back flush the tank via a hose adaptor at the sewer pipe outlet. Dropping the tank is a bit of a job, costly if you have it done, and quite possibly may end with a leak when it all just doesn't go back together quite right. I'm just thinking out loud here ... it's your deal.
|
|
|
02-16-2015, 04:21 PM
|
#5
|
Montana Fan
Join Date: Apr 2009
Location: big pine
Posts: 128
M.O.C. #9253
|
I have heard the holes in the flusher head can clog and the fix is to pull it and drill the holes out a size or two bigger.
|
|
|
02-16-2015, 05:35 PM
|
#6
|
Montana Master
Join Date: Jul 2009
Location: Olympia
Posts: 1,060
M.O.C. #9441
|
Could you drain the holding tank and take out the back flow preventer. Then couple the tube together and adapt you shop vac to the hose connection on the side of the trailer.... Note be sure to drain the tank first or you could have a large mess.... By pulling a vacumn on the pec line you might be able to pull any partials lodged in the spray head into the shop vac.. Just a thought..
__________________
2020 Ram 3500, 2022 Luxe 38GFB,2500w Solar with Victron equipment, Gen Y Pinbox
|
|
|
02-16-2015, 06:21 PM
|
#7
|
Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
|
I tend to agree with Diesel Guy. Never had one before the Monty and seemed to get by just fine. I like it and I removed the back flow preventer and go with an external one, but I wouldn't drop the tank to try and fix it. I just don't like it that much.
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
|
|
|
02-17-2015, 12:28 AM
|
#8
|
Montana Master
Join Date: Mar 2013
Location: Frostproof, FL USA
Posts: 2,362
M.O.C. #13272
|
There was a video circulating either on this forum or another, can't recall exactly where (getting old). They had a holding tank out of a unit and were testing several ways to rinse it out. If I recall the built-in flush valve didn't work any better than any other method.
I have been using my Flush King for the past few months and will probably continue. It seems to rinse my black tank quicker. In addition, every so often I close the grays one at a time and back flush them also several times. Since doing this I never get any type of smell from sinks or my black tank.
If my built-in black tank flush quit working I wouldn't spend a dime or my money or 5 minutes of my time fixing it. I think my Flush King cost me around $35.00 and I can see how it is working.
__________________
Previous: 2008 Montana 3400RL & 2014 3725RL
Current: Full Time 2022 SOB TT Toy Hauler
|
|
|
02-17-2015, 02:30 AM
|
#9
|
Montana Master
Join Date: Mar 2013
Location: Hanover
Posts: 1,473
M.O.C. #13325
|
Agree with others about it's a convenience that I'd easily manage to live without if it broke.
__________________
|
|
|
02-17-2015, 07:49 AM
|
#10
|
Montana Fan
Join Date: Sep 2006
Location: Milwaukie
Posts: 388
M.O.C. #6266
|
I agree it's not worth pulling the tank. It will undoubtedly fail some day and I could check the flush head at that time. Having already replaced both grey tanks I'm not looking forward to that job again. I have been using my Flush King since the built in unit failed. So that will do for now. Drifty1 your thought may be worth a try. Will probably give that a try when I get home. Thanks everyone for the suggestions.
Bob
|
|
|
03-11-2015, 04:17 PM
|
#11
|
Montana Fan
Join Date: Sep 2006
Location: Milwaukie
Posts: 388
M.O.C. #6266
|
Does anyone know where the flush head is located on the tank? The top or side? My problem is the head is apparently all plugged up. Probably old dried out sewage.
|
|
|
03-11-2015, 06:35 PM
|
#12
|
Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,774
M.O.C. #12947
|
Deleted, someone already suggested what I wrote
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
Similar Threads
|
Thread |
Thread Starter |
Forum |
Replies |
Last Post |
black tank flush
|
Don57 |
Montana Problems, Problem Solving & Technical Help |
4 |
01-05-2015 03:16 AM |
Black tank flush
|
Allen in MT |
General Discussions about our Montanas |
12 |
01-27-2012 01:33 PM |
Black Tank Flush
|
navybanker |
Montana Problems, Problem Solving & Technical Help |
15 |
02-11-2011 03:29 AM |
Black tank flush
|
TLG |
Maintenance |
9 |
11-10-2007 08:31 AM |
black tank flush
|
pilk |
Montana Problems, Problem Solving & Technical Help |
5 |
10-11-2004 09:23 PM |
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|