|Downspout with leaf filter and "non-potable water" label on the cistern in the playground|
|Picnic shelter with lean-to roof|
I was given a tour of the facilities by Stephanie in the office. The LEED Nature Center building has two large cisterns that are used for the toilets. These two cisterns are connected underground so that they are always at the same level. The rainwater is filtered and colored with a food grade dye to make it obvious to patrons that the water is non-potable. So as to avoid any potential crossing of potable and non-potable water lines, the cisterns are refilled with potable water when levels get too low rather than having a potable line feed directly into the toilets. So long as the filter is regularly maintained, the system is always operational.
|Nature Center rainwater cisterns that are used for the toilets|
|Toilet with rainwater and dye|
|Filters for the rainwater to prevent pollen, dirt and debris in the pipes|