Clean geothermal loop pump strainer

Why It Matters

Sediment in the loop fluid collects in the strainer over time, reducing flow and forcing the pump to work harder.

Tools

• Bucket
• Wrench (size per system manual)

How to Do It

1. Shut off the loop pump at its switch or breaker.
2. Close the isolation valves on either side of the strainer housing to contain the loop fluid.
3. Place a bucket under the strainer housing to catch any fluid that escapes when you open it.
4. Use a wrench to loosen and remove the strainer housing cap per your system's manual.
5. Pull out the screen, rinse it clean with water, and inspect it for damage.
6. Reinstall the screen and tighten the housing cap, then reopen the isolation valves and restart the pump.
7. If you're unsure where the strainer is, ask your installer to point it out during the annual tune-up.

Related Tasks

• Check geothermal loop antifreeze level and pressure Once a year
• Schedule geothermal heat pump tune-up Once a year
• Clean air ducts professionally Every 3 years