Sanitizing FWT

I know people who have run the bleach through the HWT, I haven't.  Am not sure what it would do to your anode rod.  If I had your situation I would bypass the HWT and turn the 2 or 3 valves to bypass, in my 177 it takes about a minute as I cut an access hole (5" x 7") directly above the valves.  Simply lift my 8" mattress, turn valves and ready to go with the bleach.  We use 1/2 cup in 10 gallons in our FWT and let sit for 8 hours or overnight.  Flush out through all outlets a few times for a couple minutes and drain out the rest.  I really dislike the aftertaste that the bleach leaves; yes we use ours for drinking water, so the next day we put in 1 qt. white vinegar and 1 pt. lemon juice and let that sit overnight.  Next day run through all outlets just as done for the bleach and drain the balance.  After that I will fill with fresh water from our well and let sit for a short time (1/2 hour) run through faucets as before and drain.  Finally - ready to go podding!  Been doing it this way for the last 5 years.  Guess we were lucky as the tank was never sanitized from the time we picked it up March 2011 until our ERU in Traverse City back in 2016 when Furpod told me 'SANITIZE or DIE."  Guess it helps that we are from northern Michigan or probably would have had a good amount of mold or moss growing inside.

Or just don't drink the water from your tank, bring bottled water for cooking, drinking, and tooth brushing Its not a big deal, I just sit one of those plastic 2.5 gallon dispensers on the counter when I set up camp. I always do that anyway regardless of the status of my tank. How do you know that the source you filled the tank with while camping was safe? 

I don't use refillable containers, just buy the 2.5 gallon ones at the grocery store, then recycle them. Two of them last a couple of weeks and add 17% to the limited water supply in the rPod. I've done enough international travel that using bottled water for drinking, cooking, and brushing teeth is second nature to me. I've never gotten sick in all those years doing it that way. Simple, easy, inexpensive, no fuss, and no worries. Everyone has their personal preferences, I just thought I'd share mine. There is no right or wrong answer as long as you stay healthy.