1) I think I have three choices. What are the pros/cons of my approaches.
A) I can replace the 3/4 pipe after the reducer with a longer piece. Repl ace the pipe right before the spigot with a longer piece. Add a piece from the coupler to the gas insert. I like this because it seems to avoid adding more joints, but upsets existi ng work.
B) [out-down-forward] I can add a pipe coming out of the heater to an elbow joint (or tee), run a pipe down to another elbow joint and to the left int o the spigot. This avoids touching as much of the current work.
C) [out-forward-down] I can run a pipe out of the heater to a elbow (prefe rable a tee valve with a plug in the far side), run a pipe forward to an el bow join and down into the spigot. This too avoids touching as much of the current work.
2) Should I replace all the existing above ground pipe since I am working already. It has a bit of rust on it, but not too much. How much worse is this going to be in another 25 years if I don't replace it all now? Mind y ou, this is a lot more work, but I have someone helping me who has done a l ot of piping as a maintenance man.
3) Should I put the pool heater up higher on 2" bricks to give me better a ccess if I need to service it in the future without having to disconnect pi ping. It is on a concrete slab.
4) I was thinking of adding in a tee join with a plug in case I decide to add another connection in the future.