Browse Forums Paving & Concreting Re: Concrete, weep holes and window sills 21May 14, 2019 8:17 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: Concrete, weep holes and window sills 23May 18, 2019 7:04 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. it depends on the natural ground level, if they excavated their boundary wall needed to be built as a retaining wall. If you filled, which sounds like the case then you… 1 5031 I know foam has been around since the 90's and CSR started manufacturing Hebel in 1989, so it's definitely possible 5 4118 |