A few days before Christmas I bought myself the Griot's Garage TDS (Total Dissolved Solids Meter) so I started playing around with it measuring my tap water. My straight-from-faucet water at my house (city water) was around 240. That water from my 3 month old Brita filter measured about 108. Some generic distilled water was 1. Then I took the meter to my parent's house (well water) and it spiked to around 350ish. Needless to say, I want a spotless water filtration system badly. What are you guys seeing at your places?
At my shop/garage in Shakopee it's in the mid to upper 200's. My house in Eden Prairie is actually pretty low for city water at around 170-180ppm. CR resin goes a lot further at home.
Water Supply Classifications (Water Quality Research Council) United States Water Hardness Map, What is my water hardness? Total dissolved solids (TDS) measured in grains per gallon (GPG) • Soft Water- 0 to 1 grains per gallon • Slightly Hard Water- 1 to 3.5 grains per gallon • Moderately Hard Water- 3.5 to 7 grains per gallon • Hard Water - 7 to 10.5 grains per gallon • Very Hard Water - over 10.5 grains per gallon