Rainwater downpipe: shoe or not?

[WWilts]

New build in progress.

Highly permeable strata all the way down to permeable bedrock. Trench foundation sitting on limestone brash. Foundation blocks are concrete.

Planned: Rainwater downpipes mostly 68mm > bottle gully > twinwall pipe 63mm > rainwater garden (incl existing trees)

Qu: Should the downpipes have a shoe at the bottom or should they simply hang vertically above the gully?

Edited July 25, 2022 by WWilts

[SuperJohnG]

Preference really I'd suppose for aesthetics. As long as you leave a gap at the bottom from leaving them straight to get access to anything that ends up stopped by grating on the bottle gully. 

 

Bottle gullys are very expensive also, FYI. 

 

Mine currently are sitting in below the ground level. I am going to add runner boots to the bottom of mine then just link up some field drain wavin coil and drop them into my perimeter drain which is twinwall drainage. Which then discharges into the burn. 

 

I'd originally planned 110mm soil.pipes with fittings but the groundworkers were like...that will be mega hard.and Cost a fortune. 

[PeterW]

How are you keeping leaves out of the system …? Shoe/grill can be used as can  inline filters at each gully, essential really if you have trees around. 

[Mr Punter]

19 minutes ago, SuperJohnG said:

Bottle gullys are very expensive also, FYI. 

 

I have been paying £17.63 for Hunter ones from the local BM.  I needed them because it is a combined sewer.

[SuperJohnG]

3 minutes ago, Mr Punter said:

 

I have been paying £17.63 for Hunter ones from the local BM.  I needed them because it is a combined sewer.

Ah yes - I'm forgetting most people will have that. doh. 

[Temp]

This is what we did. Down pipe into 110mm with rubber adaptors. Have lots of trees and leaf fall but never been a problem..

 

 

From there the water goes to a leaf filter and rainwater tank. Overflow to piped ditch in the road verge.