A water treatment system including an automatic shut-off control valve. The wall block has a front and rear, top and bottom, and opposing sides. The graphical human-machine interface can be operated on a portable computing device that uses an operating system that is less capable than the first operating system. If a deviation from the baseline is detected, the deviation may be compared against a threshold to determine whether the deviation indicates that the account may be compromised. The third portion of the dielectric block and the metal plates formed thereon are enabled to act as a second resonator.