I remember reading somewhere a long time ago about unscrewing the top of some floorpumps that has screw-on lids, and using oil or grease, I do not remember which, on the piston and seals. My wife has a Wrenchforce floorpump that she bought many years ago, and I think it can use some oiling on the seals. My main concern is making sure that the oil or grease does not destroy the soft rubber or leather seals, hence my aim in making sure to use the right type of oil or grease.
Can you good people please suggest what oil or grease to use in lubricating the piston and seals, so that the pump can function optimally?
Thanks for all responses.