Note: The information contained in this periodical weblog may be outdated. This was my personal weblog published before January 1, 2015. Since then I have been the co-owner and Principal Solar Designer at Florida Solar Design Group.


  1. I have Fafco panels that are about 10 years old recently I noticed a relatively large pressure jump from around 18 pounds with the solar off to 32 when the solar panels are operating . ? Chris. 408/892/0753…..thank you.

  2. Is there a flow restrictor or vacuum breaker that may need replacement

    1. You probably have an Isolation Valve in the closed position. Don’t leave your pump running like this or you will burn it up.

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