rainwater downpipe boss

[efficient]

need to run a 32mm condensate into a rainwater down pipe (round) is there a boss that fits? or do i just fit a tee into the downpipe

 

[erj]

The ones i have seen most guys just seam to cut a hole in the down pipe fitt the con in and seal it with mastc, but a tee would seam better to me

 

[Meady]

This is what I have seen done aswell, if you do it like this though use black mastic (aslong as its a black down pipe)

 

[Dotty]

Have you combined foul and surface water drainage?

 

[efficient]

yes the downpipe runs under ground

 

[Destroyer2813]

Don't mean they go to the same place plus don't forget the air break incase the downpipe blocks

 

[efficient]

yeah im running a 32mm into a 40mm pipe.

 

[Mike Jackson]

Just put a y piece into the down pipe and run into that. Air gap and connection in one.

 

[chris watkins]

The professional way to make the connection (throw away the mastic lad's or save it just for the bathroom).
1¼" Mechanical Soil and Rainwater Pipe Boss Connector (Black) - Boss Connectors - Waste Pipe & Fittings | McAlpine Plumbing Products

 

[lame plumber]

who ever invented silicone and mastic, needs shooting, when there are so many ways to do a proper job.!