>>860713>sucking water straight from the sourceAt least have a cup with you so you can let sediments settle out before using the straw. That will prolong the life of the filter a great deal.
Personally, I'm using this water distiller for base camp. It slides down into the rocket stove, as you can see. I'm still perfecting it. The next step is to install a port for adding more water. Without proper sealing, right now it is at 50% efficiency. Meaning 1 bottle of water makes 1/2 a bottle of distilled water due to the fact I need to get a heat-tolerant silicone gasket sometime.