A number of years ago I set up a siphon tube running into our Christmas tree stand from a nearby bucket. The bucket had a false—gift wrapped box over it to hide

A number of years ago I set up a siphon tube running into our Christmas tree stand from a nearby bucket. The bucket had a false—gift wrapped box over it to hide it. Through some empirical testing I found the right water height for the stand and marked it with tape. I wanted to make an electronic solution, but I think this fared better than whatever code I could write.