G
grandfather
Guest
Corki,Reverse osmosis water filters do not remove phamaceuticals from the water. In order to remove some of the pharmeceuticals you need reverse osmosis, carbon filters AND ion/sub micron filters.
The DO remove trace minerals that humans need.
I am not saying that using a home filter is bad. It is just important to know that if that is your main source of drinking water, you will probably want to take a good mineral supplement.
Another point to remember, if you are worried about pharmeceuticals in the water, the regular water report that you get from your municipal water agency probably does not list them. IF they test for them at all, you will probably have to request that information directly.
LOL, I’ve done that too. The cooler usually has bottles of water in it.
Sorry to be flip. I do think this is an important thing to consider. It just isn’t as easy as saying - “don’t buy bottled water”.
For many people, the better alternative might be to buy water in big containers (5 gal +) and then use refillable bottles for convenience. The environmental impact would be less; the large bottles are refillable or recyclable. The cost is much less.
Reverse Osmosis membranes are sub micron filters. They filter at the angstrom level. Their pore size is three to five angstroms. They block salt. They block sodium ions to about 99% rejection. That is a single atom with hydration spheres. They are used in desalination plants all over the world. There is no filter with greater rejection properties. I am in the membrane business. My company makes membranes that are used in life rafts to filter salt water.
Microporous membranes are size exclusion devices. If the pore is the size of a grape a watermelon can’t fit through. If a sodium ion is a grape a pharmaceutical molecule is at least the size of a cluster of grapes.
Beyond that, the vast majority of bottled water you buy is filtered by reverse osmosis. The systems are essentially no different other than in size from the under the counter versions. The amount of minerals and the type in municipal water or spring water varies slightly. The minerals you need in are sufficiently provided by the food you eat.
Trace minerals are not the sodium, potassium, calcium, etc. we need a lot of, but things like selenium, boron, etc. There is no guarantee that tap water, bottled water, spring water have any trace minerals. It is unlikely that these are present in most water sources and if you got them on a regular basis they could be dangerous.