Re: PVC gas tank question. Please help
On my goped I made a tank out of a large plastic soda pop bottle. I had the extra long type drink bottle holder on it. You have to make a new gasket from cork for the cap because of the type of plastic in the cap is not the right type. I used expoxy and put the plastic fuel line nipples through the plastic. Both supply and venting. It worked great. That plastic does hold up long term.
On my 2-stroke dirt bike I take a 2 liter jug of gas in my back pack. Just be sure to make the cork gasket in the cap. And I have pressured these jugs up to 50 psi also when making home made pop.
You may be already done there, but this is just a suggestion to think about. I've talked to others who have done the same as I.