You plug it into to mains
It then goes through 3 pre filters (these take out things that may harm the main filters/membranes)
It then goes through the membranes taking out 95% of the solids in the water
The water then goes into your D.I
R.O's produce waste water
They need relatively high water pressure to work optimally so some will need a 'water pressure booster pump'
R.O's for dummies
