-How long is the water in the tank good for.( How much clorox do you use) I leave water in all season, just add city chlorinated water as needed. BUT, we do not drink tank water, only bottled.
-How do you drain the fresh water tank There is a drain plug or valve in your system.
-how do i protect house and car batteries. Do I plug into 15 amp with adapter or have an electrician install 30 amp. 15A will provide charging current no problem. Just make sure you have a multi-stage charger, or you will need to check water levels often.
-should i run a/c year round or put a dehumidifier in. No advice on this one being from the Midwest.