Shutdown well and drained to install pressure relief valve on tank tee now that water pressure is regulated Called Water right tech support They confirmed that softened water is slippery Adjusted hardness setting to 40 (from 25) Set regeneration to 3 day intervals Recommend checking salt level monthly do not let level drop below low mark on outside of salt tank Fill to high mark on outside of tank Installed isolation valves hot and cold to Main house accessible in guest house basement Installed air purge valves on recirculating return lines at tankless water heaters Installed more pipe insulation in basement and additional support clips around piping