WayneDayne
2017-12-02 23:59:00
- #1
Hello forum,
we recently renovated a house and I am stuck as a hobby handyman.
The following case:
We renovated the guest bathroom (shower / toilet / sink) and installed new tiles and bathroom fixtures. The pipes have remained mostly the same.
Before the renovation, there were no problems with the shower drainage.
Now we installed a shower drain (Camargue 80cm) from Bauhaus. Previously, there was a raised tub with a normal siphon underneath.
In the attachment you can see an approximate drawing of the drainage system.
When the shower is turned on now, the water does not drain with the integrated siphon. If I remove the siphon, air rises and the water drains. Then I wait until no more air rises while the water is running, put the siphon back in, and the water continues to drain without problems. If I turn the water off, it still drains and suddenly bubbles... somehow air is getting back into the system. If I turn the water on again, it does not drain, only when I remove the siphon again and wait until the air escapes from the drain.
Furthermore, I noticed that when the cistern empties completely, the water in the toilet collects a bit towards the end and then drains delayed; afterwards, bubbling can also be heard in the toilet. It seems as if something has clogged somewhere in the drain.
My question is how it can be that the water drains when the siphon is removed, as I described above?
Does it have to do with the ventilation of the drainage system? Could something have clogged the ventilation and the air is being drawn from somewhere else, causing this phenomenon?
I would be grateful for your advice and ideas.
Regards Alex

we recently renovated a house and I am stuck as a hobby handyman.
The following case:
We renovated the guest bathroom (shower / toilet / sink) and installed new tiles and bathroom fixtures. The pipes have remained mostly the same.
Before the renovation, there were no problems with the shower drainage.
Now we installed a shower drain (Camargue 80cm) from Bauhaus. Previously, there was a raised tub with a normal siphon underneath.
In the attachment you can see an approximate drawing of the drainage system.
When the shower is turned on now, the water does not drain with the integrated siphon. If I remove the siphon, air rises and the water drains. Then I wait until no more air rises while the water is running, put the siphon back in, and the water continues to drain without problems. If I turn the water off, it still drains and suddenly bubbles... somehow air is getting back into the system. If I turn the water on again, it does not drain, only when I remove the siphon again and wait until the air escapes from the drain.
Furthermore, I noticed that when the cistern empties completely, the water in the toilet collects a bit towards the end and then drains delayed; afterwards, bubbling can also be heard in the toilet. It seems as if something has clogged somewhere in the drain.
My question is how it can be that the water drains when the siphon is removed, as I described above?
Does it have to do with the ventilation of the drainage system? Could something have clogged the ventilation and the air is being drawn from somewhere else, causing this phenomenon?
I would be grateful for your advice and ideas.
Regards Alex