Is there a thread that is 32-3 specific? Its hose time for me.
I replaced all of my hoses two years ago, and along with
a unique fresh-water flush solution, all prior issues (except for small space) are resolved. Before ripping out hoses, I suggest carefully documenting how everything is installed, like which hose is above or below, or left or right of another. I didn't do that, and so had to spend some extra time figuring out the best routing of hoses to minimize low spots.
One weak point in the arrangement of tank and hoses is that both waste-in and waste-out hoses have threaded connections at the bottom of the tank. Everything is plastic, so there is a limit to how much you can tighten those fittings. Combined with the long and stiff hoses needed, it is easy to loosen the threaded connections during installation, with the possible result of an inaccessible leak. In order to mitigate that, I put an elbow fitting in each of those hoses about 24" or 30" up from the bottom. Originally those hoses ran unbroken to their respective connections. The hoses pass through an opening in the bulkhead between V berth and head. I used a coarse wood rasp to slightly enlarge, and shape the bulkhead to provide an easier path for the hoses. Also, after everything had been removed from the head cabinet, I painted everything I could reach with Interlux Brightside.
The Whale Gusher manual pump had some minor corrosion near the internal valves, so I cleaned, primed, and painted those areas before rebuilding the pump.
Originally the seat on my fixture was about 1/2" from the salon bulkhead, which seemed wrong to me. I found that by simply moving the head pump to the opposite (aft) side, the head would be centered in the available space, which to me feels much more "normal" (see pictures in link above).