How to Use an Evaporative Cooler Float Valve

Evaporative coolers, also known as swamp coolers, are simple but efficient, and an economical way of cooling buildings in dry climates. There are few parts and mechanisms in an evaporative cooler, but they do need occasional maintenance and upkeep. The float valve is important in controlling the water coming into the unit. Follow the steps below to use an evaporative cooler float valve.

Instructions

1. 

   Attach the float valve to the cooler by sliding the threaded end through the water inlet hole, leaving the float facing inside the cooler. (See graphic)

2. Slide the rubber washer over the threads on the valve.

3. Insert the water line into the float valve inlet and fasten by tightening the nut.

4. Turn on the water supply and check for any leaks. Refasten the water line securely if necessary.

5. Finally, adjust the float valve so that the float causes the valve to close when the water level in the cooler is full, but not overflowing.

Tips & Warnings

• Most float valves are designed to be adjusted by bending the metal arm.

References

• Check the float valve and make sure it is operating properly. If necessary, adjust the float arm by bending it.

Resources

• Swamp Cooler Parts