I'm usually pretty brave when it comes to trying any DIY project. I figure if I screw up, I just tear it out and try again. But with a holding tank... hmmm..... could be a bit more than just a tear out if things don't work out the first time...Can you make your own holding tank out of plywood and fiberglass? Might be the cheapest and easiest way to get a custom tank. . .and who doesn't want another boat project :Liar:
