Why put rockers before/after a manhole when it has a granular base? Rockers are to offer flexibly when drainage passes through a solid eg concrete structure (When you muck in the rat runs). Pointless on a manhole when surrounded by single?
Good point, it wasn't mentioned in this video but the inspection chamber base normally get concreted into position - hence the need for rocker pipes. As mentioned here ruclips.net/video/FuNZxHKDdKY/видео.html
How come you don't put concrete base on manhole
Good information bather thanks
What is the unit you measur in tape ??? Is it mil?
Yes, millimeters
Why put rockers before/after a manhole when it has a granular base? Rockers are to offer flexibly when drainage passes through a solid eg concrete structure (When you muck in the rat runs). Pointless on a manhole when surrounded by single?
Good point, it wasn't mentioned in this video but the inspection chamber base normally get concreted into position - hence the need for rocker pipes. As mentioned here ruclips.net/video/FuNZxHKDdKY/видео.html
All this equipment fine for site work no good for extentions.
I've been on site almost 40 years... I've never seen a chamfering thingy!!
www.drainfast.co.uk/products/accessories/hand-tools/110mm-pipe-chamfer-tool
It's a handy tool to have
Dude every time u guys measure stuff off brickwork and a spirit level just makes me so uneasy lol use a laser!!!!!