Recent content by lostforwords

I have a CCTV Survey and can have my engineer confirm it is our property, also Builder has had two surveys undertaken and has the video so that will conclusively prove what is at the location. Any argument and yet another survey can be undertaken. NHBC can ask for tests and investigations to...

Doitall I think I have all the evidence I need from a CCTV survey from inside the pipe!

Interesting Post Script Have done a little more research into Building Regs etc. Section 7 of the Building Act 1984 basically states that in civil (or criminal) proceedings, compliance with the approved documents suggests no liability and non-compliance suggests liability where non...

Picasso I agree. If Builder disagrees then you take them to NHBC under their "dispute resolution Service".......If NHBC also did the Building Control and missed the point, it somehow seems to be a loaded dice ! Will NHBC rule that their Approved Inspectors ****** up !

Picasso My drawing is the other way round to the photo. To clarify on the photo the horizontal flow would be from left to right (normally!) I actually think the T is in totally the wrong position.........it should not feature!

Norcon I am with you on that!! BUT (the big but) the Builder seems to think all is ok and I should take the matter to NHBC (he seems far to relaxed and hence why I raise the question). If the Approved Document is just "guidance" and you can use alternative methods to achive the same...

Tried to draw the layout as basically as I can. This photo may also help to show what I think the arrangement is (it is the other way round to my drawing): Stack from above. Upstream left, downstream right. The equal branch is deceptive as despite appearance the side "arm"...

Not sure of the terms but when the toilet flushes and the discharge hits the "T" the flow divides in two. Half goes where it should to the sewers the rest flows backwards up the drain (due to the speed with which it hits the bottom of the drain from above). I have called this backflow. Also...

Hopefully schematic above will help answer your question. Had to edit my address away ! Sinks are 40mm to ground level and enter 100mm pipes via a boss and radius bend.

Admit it does seem a big job to alter system and hence why Builder is making out all is ok. I also expected to see a long radius bend at bottom of stacks (as do many other people). I think it is actually a case of the groundworkers being left to bodge and cover. For many weeks Builder was...