I'm a little late to the party but after you apply the gorilla tape, I've had great luck in applying a little heat in the form of an iron on a low setting over a piece of cloth to soften the adhesive. Especially on wood grains.
That's almost beautiful. Great idea. And thx for the info
Fantastic use of the sprinkler valve. I never thought of that. Im def going to build this. Way to go, man. This is a great ible.