This company does not deserve any stars. In August we installed a new water filtration system. The chlorine system of our existing system was not working properly so we had to manually drop chlorine tablets into the well. Mike, who apparently doesn't work there anymore, told us it would be more cost effective and cheaper to replace the entire system then to repair what was not working correctly and recommended the new system for us. During the installation we questioned Mike about the size of the tank as it was half the size of our existing one. He also told us with this new system we should NOT PUT CHLORINE in our well! Within a week of the new system being installed my young children (10 & 7) and the rest of my family began breaking out in a severe hives rash. DNS would not even return our calls at first. They actually said that my family should not use so much soap when showering. A water sample was taken to the state lab in which it reported that high levels of bacterial toxin were in my water. The system that Mike had recommended for my home and that was supposed to be better than our old one did not even have a filtration system hooked up to it! Bacteria have been pouring into my house for over 3 months! DNS did not care that my children were covered in severe rashes from their heads to their toes. Once confronted with the test results they came out and installed a UV light system. The bacteria has cleared up but unfortunately we are still breaking out with water blisters all over our hands and feet. All the research I've done tells me that our salt filtration system is pumping too much salt into the tank. We are not able to change anything as touching it will void our warranty and then DNS will not be legally responsible for anything. The new representative, Gene, does not call back! .This company is full of dishonest people. Stay clear from them, as I will be contacting the EPA, CDC and the Attorney General along with anyone else I need to get help.