We use a national average of 250 ppm to “conservatively” state the number of gallons of de-ionized water that our systems will produce on “average.” Be careful and make sure you ask what TDS level other companies are using to compute the number of gallons of de-ionized water that their systems will produce. A customer from eastern Kentucky told us that their water tested at 80 ppm. In Grand Rapids, Michigan, the water tests at 170 ppm. (You definitely don’t want to wash your car without DI water in this city…which is exactly why we invented the CR Spotless Water System back in 2003.) Another city in Orange County, CA states on its website that their TDS level is only 40 ppm which is the same as the water we tested in Portland, OR. The TDS level can also vary significantly from one city to the next, from one state to the next, and around the world.įor example, here in San Diego, we have some of the “worst” water in the country with an average TDS around 400 ppm (parts per million).
You can even try calling your local water district and asking them what the average TDS level is for the water coming to your house. Keep in mind that the TDS level can fluctuate from your water source on a minute by minute basis, but it usually stays within a certain range. Your system comes with a TDS meter that will give you that answer, but you can also buy a simple TDS meter at any pool equipment store, home improvement store, or even on ebay. What is the TDS Level of the water coming out of your hose bib?