This is to replace current water softener with a new asp2 well sanitizing unit and remove the old filter and replace it with a uv light filter combo to help with the bacteria. We will also have to cut some sheet rock to run our drain line we are not responsible to fix it. Folks arrived on 08/05/2021 to install water treatment system. Upon arrival I turned the water off to the house and began to remove the old water softener. I then piped the new one Into the closet where the customer wanted it. I then mounted the uv light filter combo to the wall and piped everything back together. I then ran the drain line into the garage and connected to the stand pipe with an air g and check valve. I then turned the water back on and checked for leaks, there are no leaks at this time. I then filled the unit up and backwashed it to get the air out. I then tested the water and programmed the unit to 21 grains of hardness. I went over the system and showed customer how to change the filter. Customer w