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Went to look at a job last week - leak from a sanipro unit on the first floor.. turns out that the unit is defective. When I investigated the pipework the installer has run the waste outlet from the macerator into a rainwater pipe outside!!!
I advised the lady how bad this was and that it needs to be rectified asap.
Anyway, she wants me to see if I can connect her bathroom to the main waste system. As far as I could see there wasn't a stack, just a 4inch elbow sticking out the floor on the ground floor for the downstairs loo connected to a run of 4 inch under the floor.
What I'm going to do on Monday is open up her celiling to see if there is enough height to run some 4inch under the 1st level flooring, open up the floor where this 4inch run is on the ground floor and tee into it.
But this would need to be vented wouldn't it? I need to check if there is a vent which serves a few houses (terraced) - as far as I can remember from college there can be one vented stack per 6 houses I think.
The more I think about this job the more I just don't want to do it.
What's the min fall for about 4 meters of 4inch before a vertical drop to the pipework under the floor? Is it even possible to tee into horizontal 4inch with a vertical branch? (Is the tee swept?)
I advised the lady how bad this was and that it needs to be rectified asap.
Anyway, she wants me to see if I can connect her bathroom to the main waste system. As far as I could see there wasn't a stack, just a 4inch elbow sticking out the floor on the ground floor for the downstairs loo connected to a run of 4 inch under the floor.
What I'm going to do on Monday is open up her celiling to see if there is enough height to run some 4inch under the 1st level flooring, open up the floor where this 4inch run is on the ground floor and tee into it.
But this would need to be vented wouldn't it? I need to check if there is a vent which serves a few houses (terraced) - as far as I can remember from college there can be one vented stack per 6 houses I think.
The more I think about this job the more I just don't want to do it.
What's the min fall for about 4 meters of 4inch before a vertical drop to the pipework under the floor? Is it even possible to tee into horizontal 4inch with a vertical branch? (Is the tee swept?)