How to disinfect drinking water in the wilderness<br>Pack the proper water purifying equipment and chemicals. If you're backpacking you should have a high quality pump with a filter, and/or purifying tablets. Immerse the end of the pump where water flows in in the clearest portion of the water source that you can see.
water purifying is a science technique
It's a science thing
( z1 technique :mod ( z2 science ) :domain ( z3 purify :ARG1 ( z4 water ) ) )