How often do you do it?

I've talked to some who say they do it every time they go camping.  Some say they never do it at all.  Others say, just every now and then.  So, I'm wondering just how often YOU do it....you know, bleach/sanitize your fresh water tank?

I do it once in the Spring.    I sanitize it once in the Spring, too. 

Thinking back to past summer we did drink the water if we were hooked up to city water but not from our tank. We have a Ro system at home so we take our drinking water with us as some places have bad tasting water. We stayed at one state park that had the best spring water we ever tasted it was so tasty we filled our jugs and took some home with us. You are correct about not wanting to get sick on water. Up north here they usto be able to drink water out of our lakes without getting sick but not now without treating it. The sickness is called Beaver Fever up here.

We do drink from ours, but only when we fill the tank from our well.  We had too many issues drinking the local water (even city-supplied water) so we don't do it anymore.  We fill up a few gallon jugs with our own water.

Now this is interesting.  I looked up the active ingredient of RV antifreeze (propylene glycol) and this is one of its uses:  "In hand sanitizers, antibacterial lotions...".  So it would seem that after sitting in the water lines all winter, most of the water system has been sanitized already.  The water heater and water tank being the only parts that aren't.