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Graywater-Cistern System Permitting Checklist
for Santa Monica.
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Cistern
Rebates - Rain Harvest Rebate Program
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The rules for building a graywater system in Santa
Monica are described in the California Plumbing
Code:
Title 24, Part 5 California Administrative
Code,
Appendix
G-Graywater Systems, March 18, 1997.
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Approved Backflow Prevention Devices List
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Water Supply and Prevention
Because there is so much misinformation available, a
great place to
start your exploration of graywater
is with its
recognized guru, Art Ludwig.
This site provides a
good overview of graywater systems and will help you
to determine the suitability of a graywater system
for your property. Next, consider
getting one of Art’s two books described on the
website. There is one book for general
interest and one for contractors.
Another good resource is
Graywater Guidelines available from
WaterCASA. The document is based on Arizona
State law but includes a lot of helpful information
including system diagrams. After you install your system, don’t forget
to notify the utility billing office at
310/458-8224. They will give you a discount on
your sewer bill.
Resource - External Link:
Rainwater Harvesting
Finally, a few rules of thumb:
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For
minimum hassle, the things you want to water
should be downhill from the lowest point in your
graywater system.
Simple systems cost less and will be
cost‑effective in a shorter period of time.
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No
matter how much graywater you produce, you will
probably still need a conventional irrigation
system on at least part of your property.
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Getting a code-approved graywater system built
is a time-intensive process.
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Putting in a graywater system is not something
that is going to save you a lot of money. But it
is one of the most effective things you can do
to cut your exterior water use and reduce the
waste stream from your home.
Questions? Call
city’s Water Resources Management
Office at 310/458-5408.
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