I’m looking for a water filter to take camping for under £50. We usually take water or there is water on site. I have life straws for emergency but don’t want to use them. We’re not going to a site this time but have a stream nearby. I want to have some idea of what using stream water, campfire cooking would be like with bare essentials. I’ve looked at some ceramic filters but they’re too expensive. Others don’t filter metals. Just wondered if anyone had tried and tested ideas?