I went out and got some opoxy for plastic. I just applied it so we'll see how it does. It sets in 1 min and cures in about an hour. So I'll do the water test tommorrow when I get up. I just need it to hold up for one day of running. I'll get a new tank next weekend. I'm only able to bash on the weekends so I hope it hold up for tommorrow. It says it says its water restant and resists most liquidsa and permanet strnght up to 2500 PSI so I hope it does the trick.