I have a house which has not got a conventionally vented tiolet soil pipe
The bathroom sink is fitted with a vented bottle trap which presumably vents smells going from the tiolet soil system but it would vent the smell into the bathroom so why fit a vented bottle trap which frequently leaks water
Why can't I fit a non vented bottle trap

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Originally Posted by williams17

I have a house which has not got a conventionally vented tiolet soil pipe
The bathroom sink is fitted with a vented bottle trap which presumably vents smells going from the tiolet soil system but it would vent the smell into the bathroom so why fit a vented bottle trap which frequently leaks water
why can't I fit a non vented bottle trap

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Bottle traps don't come with vents,(see image). Are you sure it isn't a AAV?(see image).
Does the pipe from the trap go into the wall or the floor? If you have no vent then why not install a "P" trap with a AAV? (see image)
Let me know, Tom