Reverse Osmosis Water Filters Buyer's Guide
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  We review, analyze and compare the best water filters in the industry including reverse osmosis systems, faucet filters, water distillers, pitcher filters, whole house filters, water softeners, shower filters, bottled waters and more.
 

How to have your drinking water tested

 
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Drinking water is usually tested at two levels, one is a general test which gives a "total dissolved solids" (TDS) reading. You can buy an inexpensive digital TDS test meter to do it yourself. It will give you an exact reading (in PPM- parts per million) and a very good idea on how your overall water quality is like.

The second way is to test water against each specific contaminants/ chemicals. There are the inexpensive methods which is to buy some test strips (from a local aquarium supply) which will give you an approximate color reading. But it is often not very accurate.

To ensure accuracy, you would have to send some sample water to a professional lab to have them test out what's in your water against each substance in question. However, this is very expensive, about $1500 per contaminant. But, of course, very accurate!