I put an airhead in my ‘84 38. One of my favorite upgrades by far. I use it as a Liveaboard no problem.
The old tank and head came out with pretty much no problem. I used a few bungs to plug hoses, trying to minimize how many I actually had to take apart. Still managed to make a bit of a mess. Nothing about it was pretty or fun. But again for me personally, I love not having the black water, nothing complex to break or fix, zero stink, and being able to empty everything out in a few minutes without leaving the dock, or hiring a mobile pump out.
I’m in Seattle if you ever want to take a look.
The old tank and head came out with pretty much no problem. I used a few bungs to plug hoses, trying to minimize how many I actually had to take apart. Still managed to make a bit of a mess. Nothing about it was pretty or fun. But again for me personally, I love not having the black water, nothing complex to break or fix, zero stink, and being able to empty everything out in a few minutes without leaving the dock, or hiring a mobile pump out.
I’m in Seattle if you ever want to take a look.