i just got a hiker pro filter, and was wondering does using a couple coffee filters (i have tons of em) over the prefilter extend the life of my main filter?

i think the flow will definitely get slower, but wouldnt that mean the coffee filters are working?

also, i plan to use two coffee filters over the prefilter, and then boil for a minute to kill off any viruses, has anyone done this or something similar before and although it might take some time is the water quality/filter life improved?
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"i believe a little more weight makes me push myself to be even stronger"