|It doesn't take them long to make the water look like this.|
|They've gotten big.|
The next step was to automate the filling process. I've been filling the tub from the rain barrels. I have to keep an eye on it though and shut the water off when the tub is full. Since I'm dealing with low pressure this can take a while.
The solution? I picked up a float valve at Agri Supply. I installed it by drilling a 3/4" hole near the top of the tub.
fitting to the float valve and attached a short piece of irrigation tubing. That tubing was connected to a garden hose by another barbed fitting and a FPT to FHT adapter.
timer valve on the drain, but I haven't decided if I want to make that investment or not.