Browse Forums General Discussion 1 Aug 14, 2023 9:20 am Had a new driveway installed with a 6 metre long 150 x 150 channel drain and have since found out it has 4cm of water sitting at the bottom below the side pipe exit. Trying to find out what i could use to fill this gap and even create a slight fall so water discharges? Yeah mine about 9 metres long and 8 wide with slope of 25% at one point but the end point of the outlet is past the side of garage and if he concretes allowing for… 4 4591 Agreed. I just found out today the certifier has not given the final sign off. 2 4136 Grab a hose, insert it at the top of the inlet/down pipe and turn the water on and see where the water is escaping from. Then you'll know. 3 8573 |