Bubbling Toilet

I vote "pile" at bottom of pipe. Its blocking the pipe and the air "burps" back up into the toilet. Any time we get that I get a flexible stick and go to work. Usually means we weren't using enough water......

If your tank is actually full then the same thing will occur, followed by a completely blocked up toilet.

Daryll

Thanks for all the ideas. Our "tube" drops down straight for about 12 inches and then makes a 45 degree turn and then drops straight down again below where I can see it. And there was at one point a clog which I cleared. As for a "pile" I don't think we have one (I hope) as we have never left the tank drain open when connected to the "real sewer". However I realize this is not factually observed. The rig does sit for as long as 6 months (not often) with the tank holding only the gallon or so of solution. I tried forcing air down the vents with a hand pump but met no resistance.
The tank was very full at one point (8 days worth)so something may have backed up into the vent where it joins the roof of the tank. The bubbling did stop after we dumped the tank but we have not had it full enough to see if the issue is resolved. The water hose is a good idea we will try as well as using the "spray" cleaner for the sensors (never worked for us).
Thanks for all the ideas except for reaching down the tank... We'll pass on this one.
Regards
Bill

Old-Biscuit wrote:
'Burping' toilet.......

Vent too far into tank
Vent clogged
Tank full

Vent.....when up on roof...pull vent line cap.
Is top of vent line at roof line or has it dropped down below?
Run a garden hose down vent line......open tank drain valve and blast water thru vent line to clear any possible blockage.

Tank full.....dump tank

I will try this when we pull the rig out again. Wish I had thought or been told this earlier. I have resealed the vents and slid the rig (just clears) its shelter.
thanks for this good idea
Bill

352 wrote:
OR, Yes I did and this solved it for good. Sometimes stuff gets stuck down there. Reach your arm down the hole as far as you can. When down to the max feel around for anything chunky. Grab it and squeeze it between your fingers until it gets smaller then dump some water in it (After you pull your arm out of coarse}. Do this once a month for regular maintenance. Wash your hands before cooking. I do have a self help video available. Hope this helps.

Won't be attending dinner at your place!

Me Again wrote:
Or you have a pile.

EWWWH the dreaded pOOp pile!

Get out the jack hammer.

I had this and discovered it was a pile. Went to digest it, for the bacteria. No more problems

BB_TX wrote:
Since the black tank level indicator is notoriously inaccurate I often use the "bubbling" method to know when it needs emptying.

X2...has worked for us for years....

I found that two full bowl flushes during tank drain/flush helps with piles. Bomb the pile! Chris

could be that the good stuff down there just got up to the bottom of the dump tube. Maybe it was just full up.

I would not do much consternation unless you think the tank is not holding close to rated capacity - and how do you figure that out? :h

rattleNsmoke wrote:

352 wrote:
OR, Yes I did and this solved it for good. Sometimes stuff gets stuck down there. Reach your arm down the hole as far as you can. When down to the max feel around for anything chunky. Grab it and squeeze it between your fingers until it gets smaller then dump some water in it (After you pull your arm out of coarse}. Do this once a month for regular maintenance. Wash your hands before cooking. I do have a self help video available. Hope this helps.

Man that's hilarious, but gross...:E

Mine drops 3' with two 45 bends.......just can't reach.
Would have to be 'Mister Fantastic' in order to stretch and bend my arm.

Pass.