Skip to content

Resource Center

Stop the Leak: How to Replace an O-Ring on a Hayward Multiport Valve

A worn O-ring can cause leaks and disrupt your filtration system. In this quick tutorial, we’ll walk you through replacing the O-ring on your Hayward multiport valve—a simple fix that keeps your pool system running clean and tight.

Resource Details

Key Takeaways:

1. A fresh O-ring prevents air leaks and water loss at the valve connection. 

2. Proper alignment of the multiport valve and clamp is essential. 

3. This fix can restore performance without replacing the full valve assembly. 

Step-by-Step Process: 

1. Turn off your pump and shut off water flow using shutoff valves or Hayward caps. 

2. Use a screwdriver to remove the bolts on both ends of the C-clamp. 

3. Detach the multiport valve from the filter and remove the old O-ring. 

4. Place the new O-ring under the valve collar. 

5. Reconnect the valve, align the C-clamp, and tighten the screws securely. 

6. Set the valve to “FILTER” before turning the system back on. 

Related Products

Related Resources