Quote:
Originally Posted by rvbuilder2002
We have been using this fueling system for a few years now.
One modification I strongly recommend is to add some type of inline filtration.
Either in the pickup hose inside the tank or the nozzle hose.
n.
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Roger what Scott says - I have one (which was installed by Steve Rush.)
Here's another set of mods I made - I removed the drum bung and installed a copper or brass 4 inch pipe nipple extending up from the top of the drum, with a brass cap on top. I installed the nipple into the threaded bung hole with a conductive paste (the drum is steel), and the cap with fuel proof sealant. I pressure checked the nipple and cap.
Then, I attached a brass grounding clamp secured to the barrel of the nipple.
I also ran a ground wire from the nozzle to the drum grounding clamp; the fill hose is plastic. I secured the nozzle ground wire to the fill line with alternating electrical tape and zip-ties. Fuel flow through a plastic hose can generate a static charge, creating a potential between the nozzle and the drum.
During fueling, the airplane, drum, and nozzle are all grounded to a common, verified robust ground. I make sure the nozzle is riding on the filler neck.
During my Annual in April, I plan to also install an airframe grounding lug. I think the muffler/exhaust pipe are not a robust airframe ground. I am also going to check to make sure the filler neck has a good bond to the airframe.
I am a static electricity/grounding freak.
Bob Bogash
N737G