water filter recommendation?

[DonaldW]

Totally pure water has no taste. When you begin to taste something in the water, the filter is not working.

Here is what Pure Water Products states about R/O units "wasting" water:

A guy told me reverse osmosis units waste a lot of water… Is that true?

It depends on what you mean by waste.
A home RO unit uses water to clean itself and wash away impurities. It's like a lot of other water-using appliances. We use water to wash clothes, to wash dishes, to wash cars, to flush toilets.
A reverse osmosis unit uses more water in its operation than you actually consume, but it doesn't use enough that you'll notice it on your water bill. It uses water only while it's filling its storage tank. When the tank is full, the whole unit shuts down and no water runs to drain.
In terms of expense, it's like a couple or three extra toilet flushes a day.

I've personally used a lot of water filters in my life and the R/O system is the only one I have been satisfied with (the purity of the water can be seen in the ice cube clarity test that I previously spoke of, put the output of any filter in your ice tray and see if the cubes are see-through when frozen).

Here is some good info if you are fearful of water filters removing minerals (basically you get them from healthy food in real life and don't actually rely on water to produce them). https://www.nutriteam.com/Minerals

P.S. If you'd like to see a R/O system like the one I suggested in action, drop the Cervecería Dos Aves Micro-brewery in San Miguel de Allende and see it sourcing the wetness of their delicious craft brews.

P.P.S. Believing you are going to get pure water from a small cartridge filter is just not a happening thing, whether it was "As seen on TV" or higher acclaims. The maintenance of the system is easy using the step by step procedure I laid out. Basically just unscrew the cartridges on a yearly and every two year cycle and enjoy clear, pure water every day of the week and without lugging around or storing another one of those heavy and space wasting water bottles. No more fuel for water trucks and no more CO2 from their engines. Salud!