1989 300WE Sanitation Hose

schwarz633

Member
Oct 1, 2019
35
Boat Info
1989 Weekender
Engines
Mercruiser 5.7 Inboard Straight Drive
I'd like to replace the sanitation hose the runs between the toilet and the holding tank on my 1989 300WE. I'm looking for some tips from someone who may have some experience with this. The holding tank is on the starboard side aft of the fuel tank. The hose is fairly accessible as it runs forward on the bottom of the bilge between the starboard engine and fuel tank. At the forward end of the fuel tank it turns into a small space between the fuel tank and the bulkhead. It then emerges in the head thru a hole in the fiberglass liner behind the toilet. The head is on the starboard side just forward of the helm.

My concern is that there doesn't seem to be any access to the area forward of the fuel tank where it has to make the tight 180° turn to the toilet, or in the head behind where it emerges thru the liner. My first thought is to couple the new hose to the old and have the new hose just follow the old as I pull it out. However, without being able to see the area where it makes the 180° turn, or knowing if it's fastened somehow, I have my doubts on how this will work out.

Any suggestions will be appreciated.
 
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