Understanding the Components of a Hayward Filter Control Valve Diagram

A Hayward filter control valve diagram is an essential component of a pool or spa filtration system. Understanding the various parts and how they work together is crucial for maintaining optimal water quality and ensuring the longevity of your equipment.

float bed DR Large
Model DR15 Side/Top DR20 Side/Top DR40 Side/Top DR50
Output Max 18T/H 25T/H 48T/H 70T/H

At the heart of the Hayward filter control valve diagram is the multiport valve. This valve is responsible for directing the flow of water through the filter, allowing for different functions such as filtration, backwashing, rinsing, and more. The multiport valve typically has six positions: filter, backwash, rinse, waste, closed, and recirculate. Each position serves a specific purpose in the filtration process.

The filter position is the default setting for normal filtration operation. In this position, water flows through the filter media, trapping debris and contaminants before returning to the pool or spa. The backwash position is used to clean the filter media by reversing the flow of water, dislodging trapped particles and flushing them out through the waste line.

After backwashing, the rinse position is used to settle the filter media back into place and ensure that any remaining debris is removed. The waste position bypasses the filter entirely, allowing water to be discharged directly out of the system. This position is useful for lowering the water level or removing large amounts of debris quickly.


The closed position shuts off the flow of water through the valve, preventing any water from entering or exiting the filter. This position is typically used when servicing the system or making adjustments to the equipment. The recirculate position bypasses the filter and returns water directly to the pool or spa. This position is useful for circulating water without filtering it, such as when adding Chemicals or adjusting water chemistry.

In addition to the multiport valve, a Hayward filter control valve diagram may also include other components such as pressure Gauges, sight glasses, and air relief Valves. These components help monitor the system’s performance and ensure that it is operating efficiently.

Pressure gauges indicate the pressure inside the filter, allowing you to determine when it is time to backwash or clean the filter media. Sight glasses provide a visual indication of the water flow through the system, helping you identify any blockages or obstructions. Air relief valves release trapped air from the system, preventing air pockets from forming and reducing the risk of damage to the equipment.

Overall, understanding the components of a Hayward filter control valve diagram is essential for maintaining a healthy and clean pool or spa. By familiarizing yourself with how the system works and how to properly operate it, you can ensure that your equipment functions optimally and provides you with crystal-clear water for years to come. Whether you are a seasoned pool owner or a first-time user, taking the time to learn about your filtration system will pay off in the long run.