Search results

  1. RumpledElf

    How much roof area can you drain through one 90 mm stormwater pipe?

    The stormwater plan the builder has given us has a good half dozen downpipes ... that all join together into one at the back, so effectively 150sqm going into one 90mm pipe. Probably need a decent rainhead for the back, but its not on the plan, and this is allegedly drawn up by an engineer. The...
Back
Top