zip ties>>>> thay can cause a "pinch" in the line at the "gripper" thus i saftey wire ( 2 wraps ) and then 1 zip tie ...personally the saftey wire is enough especially on ferralled items like the uat has... but i sometimes dont use a brass sodered ferral on the outside of my stoppers ( but always on the inside where you cant see ) because its another step in stopper service and can cause stopper damage while sodering )

also it has been my experience that some fuel tubing can swell over time and get bigger where as others dont....

saftey wire should pinch the tubing but not cut into it...so there is a common sense window of tightening of 2 or 3 twists

i also have stuck my tanks and all into my swimming pool to check .....using a bycycle pump ( 1 or 2 strokes only....no electric pumps ) where as i use low impact tape aronud my tank....1 or 2 pushes and the tank swells and splits the tape and thus its presurized ( most of my tanks are 100 oz ) ...then i dunk it...no bubbles....no problems


use some sense here and dont blow them up....but i have found a weak tank once that was nib and flawed at the neck...just waitng to cause a problem.....it just happen to be in a series system and would of blown upon fueling from tank to tank

now before anyone goes off on me about presurizing my tanks....think about it....in a series system the fuel has to go from tank to tank and the vent tube inside the tanks determines the flow from tank to tank...thus tanks do get pressurized to some degree.....thus i dont use a 12 volt fuel can filling system as it delivers too much fuel too fast and can and will split tanks that are series linked if the j tubes causesd too much restriction

hornetdriver