A technique to speculatively assign a memory attribute. Even ones of the m electrode plates comprise x extensions that extend from the first side and that have a first width. The housing has inlet and outlet openings constructed and arranged for permitting the passage of water containing a bromide salt into the housing and water containing bromine out of the housing, respectively. The retrofitted on original equipment micro-controller commands the hot and cold valves to start filling the tub and measures the analog water level input from the water level sensor.