16 January 2016, 13:32
I have some filter straws in the Bob's bought some single and a couple of twinpacks....bout £11 each or a twinpack for £20 they work until they clog up which tells you there fekked....about 100 to 150 ltrs per straw so long as you don't use muudy puddles lol....one should get you home.
Nothing is fool proof for a sufficiently talented fool!!!!