What are float valves and equalizers?
The equalizer valve goes into the skimmer, below the basket in the main drain port to balance the water flow. These are required for commercial applications in order to meet NSF code. The float valve monitors the water flow from the skimmer. If the flow is obstructed, or the water level falls below the skimmer throat, it will open the equalizer valve (if installed) so water can be pulled from the main drain, preventing an air lock in the skimmer.
