Vaughn, Tom, thanks for your replies.

Tank is on 32" stand. Drain hose goes from tank, to floor, then to kitchen, then up to waist height to kitchen sink. I do not know if phython once started will sustain siphon, but high tank in this case may be a good thing. Though back pressure from 3ft head (floor to kitchen sink) may not support continued siphon once started w/o leaving water running. Will have to see, good.

Bigger hose good idea. Not innovative but I could also add disconnects to output line, then connect dedicated drain tube to disconnect for drain, turn on filter to drain rather than python.

Thanks a lot for input. I don't think I have the capacity to plumb water in, but I may be able (some time in future) to plumb water out to house waste water. That would the the cats..ss.

"growitnow"
Bob