J
johnmadbag
I have a downstairs toilet which has a 90 degree pan connector with boss, and until a few months ago also had the washing machine outlet connected through the boss. I rerouted the washing machine, and I think, but am not sure, that about that time I started having flushing problems. The toilet is near the outside wall, so the soil pipe goes 90 degrees right out of toilet, then the soil pipe exits through the wall, turns 90 degrees down and straight into the ground, so there is effectively no soil stack.
The bowl fills to the top,and over a period of time empties, with various gurgling and bubbling noises. It empties until the level in the bowl is well below normal, virtually empty.
My first thought is to fit an AAV (?) which would presumably have to be internal (frost). If I release the plug on the boss I hear a hissing of air, which I had assumed was higher pressure in the soil pipe. Is this in fact a vacuum that would be cured by having an AAV? If so should I fit the AAV inside, or out, or just drill a hole in the top of the soil pipe bend outside ?
John
The bowl fills to the top,and over a period of time empties, with various gurgling and bubbling noises. It empties until the level in the bowl is well below normal, virtually empty.
My first thought is to fit an AAV (?) which would presumably have to be internal (frost). If I release the plug on the boss I hear a hissing of air, which I had assumed was higher pressure in the soil pipe. Is this in fact a vacuum that would be cured by having an AAV? If so should I fit the AAV inside, or out, or just drill a hole in the top of the soil pipe bend outside ?
John