While winterizing my '93 7.4 bravo two unit for the first time I noticed that the two plastic "hose barb" fitting on the lower part of the block are broken off (on both sides). I've never had problems with water in the bilge so the one way valves must be working. When going to the website I see the they are no longer in business. Has anyone ever put a brass fitting on instead of the special one way valve? MST guardians website says that this is ok, but my first thought is that water would push back thru the guardian unit. Am correct in thinking this???
Thanks for your help,
Todd
Thanks for your help,
Todd