On 02/04/2014 15:37, Spider wrote:
On 02/04/2014 13:19, Derek wrote:
On Wed, 02 Apr 2014 07:21:23 +0100, Judith in England
wrote:


I am thinking about using it in green house on heated sand bed.

I am assuming you are adding the capillary matting, above a plastic
sheet. Never tried it, and would think it would dry out very quickly,
but worth an experiment, nothing ventured etc :-)




It works better it you drape excess length over the end of the bench
into a water tank. The capillary matting wicks up water from the tank,
which keeps it moist. You just have to keep the tank topped up with water.

The link below shows it working on a very small domestic scale, but you
could easily expand it to suit your greenhouse bench.

http://www.allotment-garden.org/stor...illary-matting

Spider, you use Johns web site and forums? I have a couple of his
books.....good read.


--
Pete C
adventure before dementure
http://www.scar-crockenhill.org/
https://www.facebook.com/pages/Secon...57749060989952