waterfall
Roofwater harvesting using slow sand filtration


Conditions of Use / Copyright information

Please help support this site by purchasing, for $7.50, a summary of the most important results of our research for the past 8 years, including detailed drawings of the filters. This page on our blog has the purchase area. Thank you!!

The material on this site created by the work and investment of the author, INCLUDING THE DESIGN OF THE FILTERS AND THE FIRST FLUSH DIVERTER, is licensed under a Creative Commons License referred to as: Attribution Share Alike 3.0. Please read the following carefully and note these conditions.

This means you are free
  • to copy, distribute and transmit the work
  • to adapt the work

Under the following conditions:
  • Attribution. You must attribute the work in the manner specified by the author or licensor.
  • Share Alike. If you alter, transform, or build upon this work, you may distribute the resulting work only under a license identical to this one.
  • For any reuse or distribution, you must make clear to others the license terms of this work.
  • Any of these conditions can be waived if you get permission from the copyright holder.


Additionally, please note this information from the Creative Commons License:

5. Representations, Warranties and Disclaimer
UNLESS OTHERWISE MUTUALLY AGREED TO BY THE PARTIES IN WRITING, LICENSOR OFFERS THE WORK AS-IS AND ONLY TO THE EXTENT OF ANY RIGHTS HELD IN THE LICENSED WORK BY THE LICENSOR. THE LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE WORK, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, WARRANTIES OF TITLE, MARKETABILITY, MERCHANTIBILITY, FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT, OR THE ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OF ABSENCE OF ERRORS, WHETHER OR NOT DISCOVERABLE. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF IMPLIED WARRANTIES, SO SUCH EXCLUSION MAY NOT APPLY TO YOU.

6. Limitation on Liability. EXCEPT TO THE EXTENT REQUIRED BY APPLICABLE LAW, IN NO EVENT WILL LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY FOR ANY SPECIAL, INCIDENTAL, CONSEQUENTIAL, PUNITIVE OR EXEMPLARY DAMAGES ARISING OUT OF THIS LICENSE OR THE USE OF THE WORK, EVEN IF LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.


Attribution requirements:
To use these pictures my requirement (as specified above in "under the following conditions") is that you include the phrase "Image by David Tarsi" displayed in a readable manner below each and/or any image from this website that you use with the exception of the Creative Commons Logo at the bottom of the page and the W3C validator image on other pages.

In keeping with ethical academic standards, and because some of the information on this website is also cited, my requirement to use the written material on this site is that you cite your work by using MLA, APA, or Chicago Manual of Style (Author-Date system) and a link to this site in your work.

Any use of the designs of the devices on this site must acknowledge the original author and designer with the following phrase: "original design by David Tarsi" and this website with the web address: www.slowsandfilter.org    in a conspicuous fashion in writing on any device manufactured for any reason.