fresh water pool

hi all so i just got my bond approved and would like some advice my new house will have a pool its not too big and not too small just right im not a big fan of the whole chlorine thing so im investigating alternates (i grew up on the farm and usse to swim in a dam so dont mind a vew bugs in my pool)
1) vegifilterers whats the capacity of water that can be cleaned in this fashion
2) costs involved in creating a vegifilterer setup (from some one who might have done a similar setup)
3) what equipment would be necessary
4) any alternate's to the vegifilter
5) what sort of plants can be planted in this type of filter

 

Interesting you should mention this, a couple of days I Stumbled upon a youtube video of a natural pool
Natural Pools - Natural Pool selfbuild - YouTube!

 

realy the scale of the filter does not matter im just looking for advice will try it ion the existing pond first then then if it works move it to the pool