Head Down In the Heads

For the past two days I have been rebuilding the plumbing system in the forward head of the boat, fitting the new toilet and holding tank.
There's very little room to move around and fit the pipework, because of the limited room you have to work, jambed in a half sitting position, with your left arm threatening to dislocate itself.
Halfway through the installation I made the decision to replace all the existing pipework, it had been there for at least 20 years, Not a pleasant job! I won't continue this description of it's condition any further...
Now we have nice clean white sanitation pipes.
I should have the installation completed with about another 3 hours work, it will be a great day when we will be able to flush.
The next on the 'to do' list is the stern head.

Head n bathroom/toilet-nautical term