The Yorkshireman
Well-Known Member
No the waste is like 75-80% mate, that's why I'm not getting one.actually do remember readin something about waste
discharge, but think it was like 10% ?
maybe it depends on the quality of the filters
jimmy will know..
RO is not a filter as you would think of normally, it's water under pressure passed through a membrane.
"Household reverse osmosis units use a lot of water because they have low back pressure. As a result, they recover only 5 to 15 percent of the water entering the system. The remainder is discharged as waste water. Because waste water carries with it the rejected contaminants, methods to recover this water are not practical for household systems. Wastewater is typically connected to the house drains and will add to the load on the household septic system. An RO unit delivering 5 gallons of treated water per day may discharge anywhere between 20 and 90 gallons of waste water per day."
I'm getting one of these.......
http://www.uk-water-filters.co.uk/under_sink_water_filters.html
70 quid to buy and a 10.000 litre cartridge costs 15 quid to replace. Brita cartridges are 5 quid to replace and only have a 150 litre or so capacity.