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