Drinking rainwater is easy and healthy. Yes it's best to filter it and let the sediment fall out and treat it with UV (all of which is reasonably inexpensive, a

Drinking rainwater is easy and healthy. Yes it's best to filter it and let the sediment fall out and treat it with UV (all of which is reasonably inexpensive, and necessary to remove the dirt and bird poop that was sitting on your roof) but it's quite soft and free of chlorine and fluoride. It's essentially distilled water. For the benefit of your teeth you should use a fluoride toothpaste, but other than that there's nothing unhealthy about drinking rainwater.