i went to my landlords yesterday, and hes set up a rain water system there for his garage to clean the cars. i said oh ill test your tds...003!
hes gonna put one in at my place and we're gonna have 2000 - 3000 litres underneath ground. the water comes bouncing off my gutters so they'll be plenty of water to go in em. my filters are gonna last forever!!
im lucky anyway cause we have a bore whole and the tds is 50 coming outta that so aint changed resin in a year of being here. but the first cotton filter does get quite mucky but then i am drawing it up from the ground.
cant wait to have this system put in!!