May 29, 20224 yr Evening, Having a bit of a battle with the SAB authority and I'd like to get it confirmed where their authority starts and ends. We have submitted a SAB design assuming no contribution from the green roof nor the RWH tank to size the soakaway. However the pre-application screening is asking for details on the green roof & RWH (tank, size, pump, pre/post-tank filtration), etc... I'm not quite sure why they need some of this information if it does not size the system, so could someone confirm where their jurisdiction starts and ends? If they *do* need details on all this, do they require specific products to be defined or specifications only (5000L, 2 rpm @ 3.5 bar, 800W, 0.65mm external, 0.35mm internal tank filter... etc..) Reference to any regs would also be useful but probably contained in a BS EN spec that costs £££! Many Thanks!
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