Looking good, Chris! Down here, we commonly have a "filter box" to house the pool equipment. Some are stick built, some pre-fab, but all the same purpose. On new construction (depending on local code) soundproof is required. Mine is powder-coated aluminium with a foam lining. What I'd like to pass along is that the good designs incorporate walls that are easily removed (mine is three bolts on each end to remove a side panel). If that's an option, I'd highly recommend it. Day-to-day stuff is all through a door on the front, or a hinged lid. Opening up the sides is seldom needed, but saves on contortions for bigger jobs like additions or future changes
. Just some food for thought.
Project is looking excellent by the way!
