Questions RE boa housing?

[Dianne]

I plan to mold the waterfall from cement and use a small fountain pump (outside the cage) which will keep a small pool full near the top. The water will trickle out of the upper pool, down a series of small cascades, and into the bottom pond (where the snake can soak). The bottom pool will have an overflow that leads back to the (external) reservoir as well as a drain so it can be emptied from outside. I may mold a hide into the whole thing behind the waterfall (which would be cooler than the rest of the cage). It would make the waterfall lighter but would also complicate the plumbing to allow the hide to be opened if required.

I'll post pictures when it's further along.