Originally Posted by Sprinkus
I've been thinking that some galvanized hardware cloth surrounding the bottom of the valve box will keep them out.
I've tried gypsum rock, metal mesh, duct tape,ect. They STILL get in! I believe the only answer is to 90 the valve high enough (wire in sweep conduit) and pour concrete in the bottom, sealing not only the bottom, but the cut-outs of the v.b.