Wastes through joists

[AWheating]

one other problem if you drill tight holes will be noise from expansion. I would advise against it unless it just through one or two joist's at the 25 to 40% drill zone.

how about a pump?

 

[kay-jay]

is it combined wastewater and sewerage? if so it doesn't necessarily need to join the stack it could run between the joists and join a downpipe for rainwater. worth checking out.....

 

[MattWeth]

is it combined wastewater and sewerage? if so it doesn't necessarily need to join the stack it could run between the joists and join a downpipe for rainwater. worth checking out.....

Got to be careful with this - not all rain water pipes go to a combined drain (and on modern houses none do) - if it's surface water only, it's against regs.

 

[kay-jay]

i don't know what the property is which is why i said to check it out and not just blindly do it...

 

[MattWeth]

i don't know what the property is which is why i said to check it out and not just blindly do it...

Wasn't suggesting for a moment that you were advising that.

Just didn't want someone who doesn't know the building regs and might read this in the future to think that any connection to a RWP was ok.

 

[kay-jay]

aah good point! :yes:

 

[MattWeth]

Just realised that this thread is in the arms - so this type of thing probably isn't an issue - apologies.

Matt

 

[Guest123]

Maybe this will be of use to you. I can't find my own guide, but if I do I'll mail it.

www.eastdevon.gov.uk/bc-guidancenote7-notchingofjoists.pdf

 

[Nat]

is it combined wastewater and sewerage? if so it doesn't necessarily need to join the stack it could run between the joists and join a downpipe for rainwater. worth checking out.....

Interesting thought.

How do you check this out?

 

[Simon F]

lift the manhole covers, run the sink, flush the bog, put hose pipe down guttering and see where they all come out.