I recently came across "N.S.P.'s in my never ending search for info on ponds.
It's a somewhat new trend in creating and/or maintaining swimming ponds/pools without the use of chemicals and relying completely on Mother Nature to keep things clean. A Google search on the subject produces pictures of some gorgeous ponds/pools.
Apparently, N.S.P.'s are much more popular in Germany and are slowly making their way into the U.S.
While there is no shortage on pictures of finished projects, I have been unable to find anything detailing the construction of these natural filtering systems.
I believe that I can figure out the mechanical structure of the filter but am I am at a loss when it comes to what and how to populate the filter area.
A few questions to my local County Extension office - as well as local nurseries - will get me a list of native plants, but what type, how many, what placement, what ratio, etc is the needed info I have been unable to find.
Does anyone out there have any first hand knowledge on N.S.P.s?
Can anyone point me in the right direction?
