Am 31.10.2011 21:41, schrieb Jed Rothwell:
What I have meant is an airtight fence made out of plywood boards, going down to ground and going above the hight of the fans. It is very obvious that it was open to the sky I didnot think it would need special explanation but obviously not all people are bright enough to see the obvious.What do you mean airtight? Those are not even a little airtight. The top is open to the sky!
SCNR Peter
