Swap It Out: How to Replace a Pressure Gauge on a Hayward Sand Filter
A faulty pressure gauge can leave you guessing about your filter’s performance. In this quick guide, we’ll show you how to easily replace the pressure gauge on your Hayward sand filter—no stress, no leaks, just clearer readings for a cleaner pool.
Key Takeaways:
Replacing a pressure gauge is fast and requires no special tools.
Always shut off the pump and close the valve before beginning.
Proper tightening prevents drips while ensuring accurate pressure readings.
Step-by-Step Process:
Turn off your pump completely.
Set the multiport valve to the “CLOSED” position.
Remove the old pressure gauge by turning it counterclockwise.
Expect a small amount of water to drip out—this is normal.
Quickly thread the new gauge into place by turning it clockwise.
Hand-tighten the gauge until it’s snug and no longer leaks.
Set the valve back to “FILTER” and restart the system.
Resources and Explanations:
Pressure Gauge – Monitors PSI to help you know when to backwash or clean the filter.
Hayward Multiport Valve – Must be closed to safely remove and replace the gauge.
Hand-Tightened Fitting – Eliminates the risk of over tightening and cracking the filter head.
Small Water Drip – A normal part of this process, indicating system depressurization.
FAQs:
Q1: How often should I replace my pressure gauge?
A: Check it every season; replace if the readings are inaccurate or stuck.
Q2: Can I use thread sealant or Teflon tape?
A: Most gauges come pre-sealed, but a small amount of pool-safe thread sealant is acceptable if needed.
Q3: What PSI reading should I expect when the system is running normally?
A: Every pool is different, but most systems run between 10–20 PSI. Note your system’s “clean” baseline after installation.
At The Great Escape, we make pool ownership easier with helpful tutorials and expert advice. For more guidance or pool supplies, stop by your local store—we’re always happy to help!
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