Comments on: Garden drainage? http://www.drainages.co.uk/garden-drainage/ Help with Your Blocked Drainage Wed, 16 Sep 2009 12:29:50 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: Sandy Mac http://www.drainages.co.uk/garden-drainage/comment-page-1/#comment-192 Sandy Mac Sun, 16 Aug 2009 22:01:12 +0000 http://www.drainages.co.uk/garden-drainage/#comment-192 Pozzolan is added to concrete sometimes - I think it is made of volcanic rock (absorbent possibly?) though I can't imagine how it would be used in a garden drainage situation. Look for aggregates suppliers in your local Yellow Pages, they would be the most likely to merchants to source it or point you in the right direction. Good luck :-) Pozzolan is added to concrete sometimes – I think it is made of volcanic rock (absorbent possibly?) though I can’t imagine how it would be used in a garden drainage situation. Look for aggregates suppliers in your local Yellow Pages, they would be the most likely to merchants to source it or point you in the right direction. Good luck :-)

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