I have an '87 Ericson 34. Does anybody know if the thru hulls are PVC? Also, although most posts I have read here and elsewhere, insist that Marelon valves should be replaced. However, one site indicates that the Marelon series 93 were acceptable. Does anybody know if this type is on my boat.
Thanks, Howard
80's factory thru hulls , below the waterline, were Marelon, from RC Marine of Australia. The later 90's series 93 from Forespar (who bought up the product line) are very different designing.
We changed out all of ours over a decade ago.
Acceptable? To who?
Ours will pass a survey just fine . Note that EY was screwing a valve onto a thru hull, and the later "93' design is a true seacock, with the valve body (on our boat) epoxied to the backing plate.
If you see the black valves screwed onto the threaded hull fitting, you have the original type.
AFAIK, Ericson never used a PVC thru hull fitting below the water line.