Name: Paul Anguiano Richland, WA (Zone 7a) GW & DG: tropicalaria
I've had good success with generic rubber pond liner patch kits like this one: http://www.homedepot.com/p/Tot...
These are generally self-adhesive, and I always use a solvent to clean the area thoroughly before applying.
Mid-Columbia Gardens Geodesic Greenhouse
Years ago my mother used to say to me, she'd say, "In this world, Elwood, you must be" - she always called me Elwood - "In this world, Elwood, you must be oh so smart or oh so pleasant." Well, for years I was smart. I recommend pleasant. You may quote me.
