I'm in the Process of -- Replacing or Verifying All Plumbing Below the Floor. The 1970 Islander 37, MS had all the Thru. Hull Fittings Replaced ( per last owner, it nearly sunk because of old fittings).
I see a lot of different hook ups and has two sets of bilge pumps and I just checked them and neither one worked.
I have the fresh water system to check out.
I have toilet system (updated sys.) and wonder how it is plumbed ? Also, I see a lot of boats listed for sale and they always say the toilet is installed but not hooked up... so what is the deal here ?
My boat was built in 1970 and has had five owners, a lot of people did different things to the boat. I do not have a boat manual and it's difficult to figure out what is what below the floor level, has had a lot mod's. over the years.
My Question.. what books would you buy to rework & test all the systems I ID'd above i.e. two bildge pump sys., fresh water plumbing, closed cooling sys. for Perkins Diesel, 6 gal. hot water sys., and toilet system; I have not found a holding tank but may be right below the head (need to look more) ?