just wondered if the ports when mounted on van rear panel rust the van panel as my ports always leak after a fashion (fittings dont last 5 minsutes)
currently have ports on putside of van on underside - which makes bending and reaching more hassle than on van panel i would have thought.
also having them on underside the times ive reversed in tight space in customers yard/drive and had an earth mound shoved in the ports is not un common.