So has anyone ever used or know if it's safe to use that flex seal stuff? I am in the middle of plumbing my tank and I was in the process of filling it up and their was a little leak. So is it safe to use that flex seal or the tape version?
I've never used any of the liquid rubber stuff, but I have used rectorseal on threaded fittings with great success. Not sure if your issue is with threaded fittings though