According to Building Regs H1 Table-11 2015 approved doc, our 800mm deep mini Inspection Chamber (with a +-32cm internal diameter) should not be deeper than 600mm. I believe this is to ensure effective rodding from above.
Q: Could I bring this into compliance by removing the top 200mm riser section and concreting a 450mm IC barrel around it with a 450mm cover at original ground level? Rough sketch attached.
This would make the mini IC 600mm (invert to cover) but the "ground level" immediately surrounding it would only be a +-12cm wide ledge. Don't know if this would comply with regs.
Thanks,
ian
Q: Could I bring this into compliance by removing the top 200mm riser section and concreting a 450mm IC barrel around it with a 450mm cover at original ground level? Rough sketch attached.
This would make the mini IC 600mm (invert to cover) but the "ground level" immediately surrounding it would only be a +-12cm wide ledge. Don't know if this would comply with regs.
Thanks,
ian
