When i bought my 1985 Ocean Yacht 46’ Sunliner 3 years ago I recall the statement being made; “this is how you switch to the forward holding tank”. My question; does anyone know how to switch to the forward holding tank?? We are now live aboard in Door County WI and need to figure this out for when, if, we have guest during these Covid times.
You want to know every inch of you boat, especially what's behind your hatches, so explore. Open the hatches above your holding tanks and look for a diverter or "Y" valve. It should also show in your owner's manual.