waste and building regs

[tiling spread]

any one know how to run waste from a bath thats over 4m from stack
the sink is T'd in too it ie what size pipe ill need and what this about 200mm drop on the waste pipe from the baht/sink.
to the stack?

and roding eyes at change of flow

if i was to run the bath 50mm waste and anti vac trap/ T the sink in to the waste from the bath what size pipe do i run.
ill use anti vacs on bath and sink.

HELP

 

[markfxy]

50mm will be fine with an anti vac on it you'll have no problems

 

[tiling spread]

what about the vent pipe and 200mm drop too the stack im lost

 

[jtsplumbing]

A lot of these regs only apply to new build, referb work regs not so tight.

 

[tiling spread]

yer i had building regs round the uther day went over my head lol