Heading to Zion National Park in a couple of weeks to do some hiking. A notice on their website says there is a toxic Cyanobacteria bloom in all park water sources and using a filter will not work. I confirmed with Sawyer that they can't do anything with the bacteria when using their filters. So I'm left to use other purification methods. I have a Steripen, which supposedly will kill the bacteria, but I was wondering if anyone could recommend another method. It seems the Micropur product of the Katadyn Group might be an alternative.

Product suggestions?