Stalker loved the last item in the February edition of Mushroom Business.
The item was on how important is straight shelving in a growing room. Basically as the photo with the item showed , a small aluminium strip screwed into the concrete floor to hold shelving support firmly in place was the key to straight shelving.
Old school technology, but a brilliant wee tip all the same - really getting down to the nuts and bolts of it there with Jos Buth from the Mushroom Advice Network.
