Adam2 Posted December 30, 2020 Share Posted December 30, 2020 We're about to start getting drainage dug for this floor so thought would post up the proposed design from engineer co. Points of note are that this floor is below the invert of our existing ground floor level manhole going out to street sewer hence the pump chamber which will pump up to this manhole. Pump chamber is not serving whole house so I understand we have flexibility on sizing - will serve an en-suite, WC, utility and kitchen. The base depth of the chamber will be adjusted depending on final sizing so likely to be lower than indicated in plan. Surface water goes down into the already installed soakaway. Solid lines = foul drainage and dashed = surface water S03 at the top of image is at ground level and brings garage roof/driveway water down to this floor level. Silt trap is already installed and the pipe shown running to that diagonally connects into the chamber S04. Roof of the basement is the outside terrace for the floor above. cheers for ideas Link to comment Share on other sites More sharing options...
Adam2 Posted January 3, 2021 Author Share Posted January 3, 2021 little bump for this one - 71 views and no comments, is it really that awesome ? Or just so much wrong with it ? .... 1 Link to comment Share on other sites More sharing options...
JamesP Posted January 3, 2021 Share Posted January 3, 2021 My only concern is where is the Pantry? Someone will be along to advise. HNY. Link to comment Share on other sites More sharing options...
CivilEng2020 Posted January 10, 2021 Share Posted January 10, 2021 I think the run with SVP/SS going into F04 is coming against the flow, recipe for constant blockages at F04. Can it be connected as a junction to the run under the building and some sort of rodding point on the svp? Link to comment Share on other sites More sharing options...
Adam2 Posted January 10, 2021 Author Share Posted January 10, 2021 Thanks @CivilEng2020, I had a few suggestions to the engineer and added an extra one similar to your suggestions. I tried to crudely change the latest design to show the idea for improving F04 - I think this may be able to be replaced by a rodding access as you suggest, also tweaked a few other bits. New in orange, tried to cover the old black lines - think you can get the idea. I moved F01 and F02 further right as that greatly reduces the chamber depths as the ground will rise steeply from right to left. I think we're almost there - need to be as digging this week Link to comment Share on other sites More sharing options...
Adam2 Posted January 10, 2021 Author Share Posted January 10, 2021 On 03/01/2021 at 18:54, JamesP said: My only concern is where is the Pantry? There is a small pantry - top left in kitchen area. Originally planned as WC accessed from other side of wall - but re moved that ? Link to comment Share on other sites More sharing options...
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