Browse Forums Paving & Concreting 1 Oct 11, 2021 6:55 pm Looking at putting 3 x 10,000L tanks on concrete slab off shed, 3m x 13.5m x 100mm to suit an 'E' type soil, 32 MPA with F72 mesh. Can someone tell if this is strong enough to hold the weight of tanks + water or should i go 150mm thick slab which is going to cost a lot more. Thanks If you can calculate the reasonable charged head from let's say 100mm below the gutter to the top of where the vertical riser's horizontal discharge pipe will be, that… 11 17904 Grate, thank you! RexChan if thats the reason i could sleep well without thinking about additional cost. But 1st i'll need to read about NRV cleaning/replaing stuff. I… 7 31821 Building Standards; Getting It Right! Thank you for the generous offer. I need to get the plumber out to give me an explanation. As mentioned I haven't seen any rain water discharge from pipes 1& 3. It… 7 11231 |