name='soapsupah' said:thanks for the info about the fittings, reps to you
also the compression fittings must be used with the OD/ID designed for it if the wall isnt thick enough it will probaly leak.
also they arent 100% leak proof, but they give a good protection.
the only thing i know that has the best protection agains leaking would be a metal clamp and a large fitting togheter
if the first condition i said is done just ignore the other ones.