a teaspoon of unscented bleach in the water 5 gallons for about a half hour will kill pretty much anything if concerned about virus?Thanks, xm193. I saw these filters in the catalog that arrived today. $29. ain't cheap but it's cheaper than the $50. everyone else wants. I was wondering if they were any good and here's your post! I noted that the ad says "doesn't kill viruses". Is this true also for the name brand filters? I have a Katadyn Gravitron. The ad also said you can wash their filters up to 100 times. Is that true also for the name brand? I quit using my filter for daily use because at almost $200.00 (including shipping & handling) I just couldn't keep replacing those filters every 3 months.
Thank you so much for sharing your research with us.
That works out to 24 drops per gallon. The recommended treatment rate is 8 drops per gallon for clear water and 16 drops per gallon for cloudy or suspect water. Also, bleach doesn't have a long shelf life so it gets weaker with age. Calcium hypochlorite (pool shock) has a much longer shelf life. There's a big thread on how to use it that's always in the first page or two of this forum.a teaspoon of unscented bleach in the water 5 gallons for about a half hour will kill pretty much anything if concerned about virus?
That is a cool chart.I would go no higher than .1 micron or 100 nanometer filter.
Check the cool chart with the slider on the bottom.