I had a wire attatched to my hose that ran 2 valves for 2 stepping worked great for 7 or 8 months then the wire broke a couple of times. I built a new wireless remote that turns my soap and acid on or off You can only have one or the other on at a time and i can shut the whole thing off for rinsing, it works from about 150-175 feet, It doesn't work so good in between trailers but I just wash so I end up wher I can switch.
Jerry B
Cleaner Image Power Washing
cleanerimagepw@sbcglobal.net
920-740-6100