The pump was on a homemade shelf half-bolted to the engine room wall. And that shelf was going to get gone. So out came the pump, accumulator tank, water filter and this set of Groco electronics designed to turn off the water pump if it runs continuously for 5 minutes. All gone.
Then I disconnected the bilge pump hose, threaded it through the hole in the shelf, and removed the shelf. There, all clean. :-)
We don't have a whole lot of water demand, so the replacement pump was a ShurFlo Aqua King II 3gpm (model 4138), along with a compatible strainer for the supply side. On it went to the wall, hooked up, and worked like a champ with no leaks.
All in all, a necessary repair, and a great simplification.
Before
During
After