Make A Water Filter Out Of A Pop Bottle

This will mean the clean water comes out of the bottle into the coffee cup.
Make a water filter out of a pop bottle. This water filter is very easy and quick to make. So cut the base off the plastic bottle first put the bottle upside down in to a coffee cup. You might also try cotton or window screen material not designed for filtration. Most if not all the materials can be found in or around your house.
From top of bottle to bottom. Water bottle sciss. You will need to build a support or the lot will fall over by the way. Sapwood such as pine contains xylem which can absorb and filter out dirt and bacteria.
Then go backwards with the finest filter nearest to the open top. Make a plant xylem filter using a water bottle and a pine branch. A water filter can be a necessary survival item if you have no access to clean water. It can remove up to 99 9 of bacteria from water but will not remove viruses such as hepatitis and rotavirus.
The pop up nipple on the bicyclest bottle just happens to fit over the nipple tube that fits on the end of the filter that otherwise drains into your filtered water receiveing vessel.