Quote History Quoted:
With or without soap?
With soap, just wash them up and rinse them downstream from where I am getting my drinking water.
Without soap, soak them overnight in a stream or pond, wring them out good and air dry.
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Soap in the drinking water???
I don't anything about NY but if you got caught doing that in the Sierra, the ranger would fine your ass out of the county.....
Soap, sunscreen and salt from your body is NOT good in the water source. In the 70's whole lakes turned green from this practice, now that washing in the lake is banned - the lakes are back...
To answer the OPs question - fill bear can with water, carry 100 yds from stream / lake wash clothes - repeat several times. I've been doing it this way for 35 yrs and the clothes come plenty clean. Water will get you 90% there, no need for soap.
A solar shower works great for heating water for person, clothes or dishes.
My skinny ass waiting on my share of 104° goodness (5 liters ) - Ya is is well worth the weight if you are going out for a week or so.