We were caught in a torrential downpour yesterday, and discovered that several portholes were leaking. They are all manufactured by GEBO in Holland, and I also found them listed in a Wabaco (Germany) catalogue, so perhaps they have been bought by them. The hatches appear to be the "Econoline" version.
Is there any way to replace the rubber seals without removing the entire porthole? The leaks are a minor annoyance, since the portholes are above the waterline, so I don't want to spend a fortune on this repair.
I found one reference recommending using Armorall to "renew" the rubber seals. Has anyone tried this?