Thursday, August 07, 2014

Water Quality

The buildup after three months.
Foster City's latest water quality report shows the levels of all contaminants to be well below the maximum level (MCL) allowed for drinking water. That may be true, but slowing hot-water flow and the water heater screen reveal that the algae content has increased substantially over the past three years. As the reservoirs become shallower, the particulate density has gone up.

The plumber said that an annual cleaning should be sufficient, but 3-4 times a year seems to be what is needed to keep the hot water flowing.

Another consequence of one of the most severe droughts on record.

After the cleaning.
© 2014 Stephen Yuen

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