Yesterday, I started testing my newly constructed deionized water window washing system. A feature that distinguishes it from every other system I have seen on the market is the ability to switch between regular water for washing and (expensive) pure water for rinsing using electric solenoid valves rather than a mechanical bypass valve. This allows me to switch from the window washing pole location rather than having to go back to the deionizer tanks. What I realized after washing a few windows is that a wireless remote control switch would be a far superior alternative to the wired version I initially built. Managing an electrical cable in addition to the water feed tube proved to be something of a hassle. For the whopping sum of $12, I purchased a wireless transmitter, receiver, and case to upgrade my system. I initially considered this approach but was concerned that a transmission might get dropped and leave the system in the deionized delivery mode wasting the expensive pure water. For an additional $6, I will be adding the beeper/flasher pictured below which will provide a visual and audible alert anytime deionized water is being used.