Automating Fountain Refill with a Sprinkler System and Float Valve

The Solution: A Ballcock (Float Valve)

Install a standard toilet-style float valve (ballcock) in the fountain's lower basin. Connect your irrigation drip line to the valve inlet. Set the float so it shuts off when the water reaches the optimal operating level for the pump.

Key Points

• Ensure the valve is rated for your water pressure.
• Use a pressure regulator if irrigation pressure is high.
• Include a backflow preventer if required by code.
• Test and adjust—trial and error is normal.

Why This Works

The float valve maintains a constant water level automatically. When evaporation drops the level, the valve opens; when it rises, it closes. No timer, no guesswork.