The directions on the website were sparse. The part numbers in the manual didn’t match the part numbers on the website. All I need to filter is arsenic, my tap water is from aquifers and is pretty good otherwise, no sediment, rust, or other chemicals. So, I just bought three arsenic filters.
Don’t really need the arsenic filters, the water is just under the standard 10 pbb, but I figured why not? When the filter was new, I paid for a water test of before and after the filter. Before was 8.(something) and after was 0.5ish. So, it made a big difference.
No amount of arsenic is safe, like no amount of alcohol. Same idea, but with water. I’m sure arsenic, even at 8, won’t be the thing that kills me, but again, why not filter it since I can?
RO also puts about 3-4 gallons of wastewater down the drain for every gallon of filtered water it produces, which is usually acceptable for drinking water quantities, but would be extremely wasteful for bathing and laundry.