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.
Key Takeaways:
A fresh O-ring prevents air leaks and water loss at the valve connection.
Proper alignment of the multiport valve and clamp is essential.
This fix can restore performance without replacing the full valve assembly.
Step-by-Step Process:
Turn off your pump and shut off water flow using shutoff valves or Hayward caps.
Use a screwdriver to remove the bolts on both ends of the C-clamp.
Detach the multiport valve from the filter and remove the old O-ring.
Place the new O-ring under the valve collar.
Reconnect the valve, align the C-clamp, and tighten the screws securely.
Set the valve to “FILTER” before turning the system back on.
Resources and Explanations:
Hayward O-Ring – Seals the connection between valve head and tank to prevent leaks.
C-Clamp – Holds the multiport valve and filter tank tightly together.
Screwdriver – Required tool for removing and reattaching clamp bolts.
Hayward Caps or Shutoff Valves – Stop water flow from skimmer and return during service.
FAQs:
Q1: How do I know if my O-ring needs replacing?
A1: Look for signs of leaking or hear air sucking into the system—it often means the O-ring is cracked or worn.
Q2: Can I use any O-ring for this repair?
A2: No—make sure to use a Hayward-compatible O-ring to ensure a proper seal.
At The Great Escape, we’re here to help you protect your pool system and get the most out of every season. Need more help? Visit your local store or browse our full library of tutorials online.
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