2. Identify your services valves and attach a short length hose to the hot water side (usually a red handle valve, this is your outlet side) and place the other end in a 5-gallon bucket or any other plastic container. Install a hose to the cold water service valve (usually a blue handle valve, this is your inlet side) and the other female hose adaptor to a submersible pump, lower the submersible pump into your bucket/container. Pour approximately one to two gallons of white vinegar into the bucket or container.
3. Make sure both service valves are fully opened and turn on your submersible pump, allow the vinegar to circulate through the system piping for approximately 30 to 45 minutes (you may have to repeat this process more than once depending on the last time the unit was serviced and/or the levels of minerals).
4. Run clean water through the system for approximately 5 minutes to dilute the residual white vinegar in the piping.
5. Close both service valves and disconnect hoses, open the cold water valve to the unit and then the hot water valve. Run water a small amount of water throughout your home or business plumbing system, restore electrical power to the unit.