Water

[benbull]

How about water purification tablets? 10 litres of water isn't enough for 1 - 2 weeks, but 28 puritabs or a water puri pump would give you more?

https://www.amazon.co.uk/LifeStraw-Backpacking-Emergency-Preparedness-Protozoa/dp/B006QF3TW4/ref=sr_1_4?ie=UTF8&qid=1512122654&sr=8-4&keywords=water+purifier

https://www.amazon.co.uk/Sawyer-Products-SP105-Filtration-System/dp/B00TOX6UM6/ref=cts_sp_1_vtp?pf_rd_m=A3P5ROKL5A1OLE&pf_rd_p=1212178027&pf_rd_r=ff04d708-d67e-11e7-bad9-2ffe946aed28&pd_rd_wg=Zgt30&pf_rd_s=desktop-detail-softlines&pf_rd_t=40701&pd_rd_i=B0185QNVE2&pd_rd_w=bGGII&pf_rd_i=desktop-detail-softlines&pd_rd_r=ff04d708-d67e-11e7-bad9-2ffe946aed28&_encoding=UTF8