Filtration Malfunction

This short video was taken on Friday, Jan. 16th, 2026 just after 4:30pm. This was not a scheduled watering period in the Canterbury neighborhood, nor were there any visible signs of off-schedule watering occurring while doing a drive-by visual check of the residences.

This is a "no-flow" condition where the pressure across the entire Canterbury neighborhood should be at the system static pressure, with differences only due to varying elevation. So it would be expected that the pressures measured at the input and output locations of the filter would be equal.

The last scheduled watering cycle for Canterbury was that same day, ending at 8:30am, approximately 8 hours prior to the recording of the video.

In the video you will see the filter execute its cleaning cycle several times. The time between the completion of one cycle and the beginning of the next cycle is only 8 seconds.

Relevant observations:

1. Color of the discharged water - The water is colorless. When debris is being removed from the filter screen, the discharge water is brown.
2. Pressure on the output side of the filter screen is 15-16 psi (measured when the dial is set to "Low Pressure"), and remains steady even as the rinse valve opens and closes at the beginning and end of each cleaning cycle.
3. Pressure on the input side of the filter screen is approximately 55 psi (measured when the dial is set to "High Pressure"). and varying by about ± 5 psi with short spikes occurring when the rinse valve opens or closes.