Posted 2/2/2009 18:45 (#593863 - in reply to #593474) Subject: RE: Grain bin trap covers/grates.
SW MN and Gold Canyon AZ
If you can find them around .... I use the half round tunnels out of the old steel corn cribs. Just weld 2 of them together, set over the sump and filler up. Impossible to plug up the whole thing.
Grain bin trap covers/grates.
