Gravel or MOT3 or ???? for shed and resin patio sub base for good water flow

Joined
6 Oct 2014
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Bristol
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United Kingdom
Hi all.
Busy sorting out an area for a shed (with concrete base) and a resin based patio. I read that I should be using a porous base (SUDS compliant). Looking online there is a lot of options like gravel, basalt, MOT 3, etc.... Would any of them work? Do I need a different base or can I just use the same material, as I see I can get gravel and shingel for cheaper than MOT1. Not sure if the concrete requires a specific type of surface.
Thanks for any advice.
KR
Alan
 
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