Ive been trying to figure out the sink system for the new van build. Its one thing I don’t like is drilling holes for water flow outs in floors and having to get paperwork signed off for 240 volt electrical and LPG gas fittings. I thought the easiest way to design the sink is to use Jerry cans underneath the sink and pressurize them to the tap and have the run off to another colored can. Filtering the system was also a consideration. Many of the caravan RV styles of filters don’t last very long and require repeated replacing of the filter element. The Sawyer simply screws onto the tap and can be back flushed like the smaller counterparts. I can just attach it when I require drinking water.