Monday, September 26, 2011
Cistern finally run dry
Last weekend we used the last remaining rainwater (from the rains in March- half a year ago. Frank went down into the cistern and scooped up the rest of the water (not fun). There were no leaves or conifer needles in the tank, but a thin layer of black slime at the bottom -most likely from the soot of L.A.'s air (same stuff as the one we washed off the solar panels earlier this month
We hope the remaining moisture will evaporate over the week so that we can vacuum the bottom of the cistern and get it ready for the next rainy season. We'll also get a finer mesh filter, maybe that'll help to keep some of the dirt out. As a summary of our first rainwater watering season, I have to say, that it was a full success and that the water lasted longer than anticipated. We are still taking data of our water and energy use and will be able to provide more detailed information of this year's consumption at a later point in time. Currently, we are on average 50% below a "standard" single family home. But that data was only for the summer, the main irrigation season. The usage should drop more when we enter the rainy season- but keep in mind, the summer was not a very hot one this year.