Browse Forums General Discussion Re: Perimeter paving slab drainage? 2Oct 09, 2020 11:18 pm 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Perimeter paving slab drainage? 4Oct 10, 2020 11:46 am 3in1 Supadiverta. Rainwater Harvesting Best Practice using syphonic drainage. Cleaner Neater Smarter Cheaper Supa Gutter Pumper. A low cost syphonic eaves gutter overflow solution. Re: Perimeter paving slab drainage? 6Oct 14, 2020 11:26 am Make the water go where you want it to go. It's lazy and will always go downhill. My brother had a footpath between his house and a small retaining wall. There was a space between the wall and the path approx 200mm wide. The space had a subsoil drain (ag pipe) leading to a pit. On top of this was some soil then some large rounded stones up to the surface of the path. In heavy rain the soil became saturated and water did not pass through to the pipe below. He removed the rocks to the side and then dug out the soil. He replaced the stones and topped them up with more similar stones. No more flooding since as the water can easily pass through the stones and get to the pipe and into the storm water pit and away. Yes, unless you are in a low intensity rainfall area or the area is protected from rain. Do you have access to NCC Part 2 or can you download it? I can email you a copy… 10 12376 i had the my concreters concrete right up to the fence. I have pits all along my path, so the water tends to drain away from the house and into the pits. There's only one… 7 12647 13 6578 |