Tim, since reading your posts regarding lubricants in PCPs

I've been wondering if a drop of Silicone Chamber Oil (not pellgunoil) every 5 fills or so might be a good idea for those using hand pumps exclusively? That might help keep the metal coated so it won't rust.

I use a hand pump since we live about an hour away from the closest place to get SCUBA tanks filled.

Thanks,
A.R.