Why does my downstairs toilet have trouble Flushing?
We are on a septic system. About two months ago, the downstairs toilet had trouble flushing. You would flush, and it would fill the bowl. If you waited at least 20min, the water would drain and you could usually try again and it would flush.
Why does the toilet flush down the vent stack?
So, when the upstairs toilet flushes a large volume of water down the vent stack it forces air up through the toilet since it cannot go up through the AAV. The only really good solution is to add a vent to the downstairs plumbing that goes all the way to the attic and joins the house vent stack there.
What should I do when I Flush my upstairs toilet?
If there is a sink, run water in it full, drain it, time it. Do it again, but this time flush the toilet. See if the water drains slow. This is just a simple test if do-able to “guess” whether there is a plug/buildup in the pipe where the toilets meet.
Why does my toilet fill up and then drain slowly?
A toilet that fills up normally then drains slowly is an annoying problem to have, especially when you’re trying to flush solids. Most of the time, the material will not even be completely flushed after the toilet water has gone down.
What happens when you flush the upstairs toilet?
What happens if your main drain line is partially clogged and the upstairs toilet suddenly dumps 5 gallons of water into that drain line so that the water comes into the drain line faster than it can flow through the partially clogged section?
Where is the drain from the downstairs toilet?
Without knowing your house layout, you can follow the drain from the downstairs toilet to where it meets the pipe for the drain from the upstairs toilet. Once you identify the drains intersection, look for another drain from any sink anywhere in the home that is PAST the intersection of the two toilets pipes AND closer to the main sewer drain.
Why does my downstairs toilet gurgle when I flush the toilet?
When the pressure in the drain piping goes BELOW atmospheric pressure and threatens to suck the water out of the p-traps, the Studer vent opens to allow air into the drain piping to relieve that partial vaccuum. In this case the problem is not a partial vaccuum in the drain piping, but air pressure in the drain piping.
So, when the upstairs toilet flushes a large volume of water down the vent stack it forces air up through the toilet since it cannot go up through the AAV. The only really good solution is to add a vent to the downstairs plumbing that goes all the way to the attic and joins the house vent stack there.
