[Toymeister]

We have auto fill. It uses the same mechanism as a toilet. Like a toilet it has a overflow tube.

With ours the over flow tube was cut to length for an ideal water height. The float on the toilet valve was also set to ideal. So in practice the rain drained away and each time we used it the movement of our bodies and the displacement of water of two humans caused water to be drained away, in turn auto fill refilled it.


The home was vacant for a while. The vacant home used 380 gallons in the winter time. No it was not the toilets, those were shut off. During the summer (with rains) it used approximately 1850 gallons while we were there, swimming.

This is how I fixed it:. I added a 1" diameter coupler on the drain tube. This coupler raised the water level before it drains. The water level raises with rain and our spalshing around also sends some water down the tube but not so much that the auto fill kicks in. Essentially, I created a one inch buffer of water. The auto fill only is used if it is hot without rain.

For less than one dollar I cut my water bill and sewage bill but still never have to worry about low water level.

If you want to see this PM me.