KDD

No, haven't had any leakage in the FAST pipe, except for the manifold block I mentioned. It was defective & they replaced it immediately. No O-rings leaking yet.

Re. the steel pipe (1.5"). I am officially blaming Chinese fittings. These fittings were purchased locally & have nothing to do w/Rapid pipe business. After they first leaked, I disassembled & re-doped & re-tightened. I'm using a 48" aluminum pipe wrench. I suppose @ some point I could break the fitting, so I was getting them tight. Same leak in same place. Disassembled & wrapped w/Teflon tape & really laid into it this time. Still leaked. Went back to pipe store & bought all new fittings. Doped them up & let them dry overnight before assembling. Assembled the next day & retorqued again w/the 48-incher. Still leaked. They would bubble w/just 50# of air. So, I gave a final frustration tightening thinking they were probably going to pop or crack. Fitting (90 str el, 1x1.5 bushing, 1x2" nipple) bottomed out & I checked again. No bubbles. But, I've never had to twist galvanized pipe like that before. Maybe they should've just been black pipe, but they'll rust if not painted.

Anyway, FAST pipe stuff is good, Chinese common steel pipe fittings is not OK.....here.