Originally Posted by thunderworks
3. Do you avoid water hookups at parks which are clearly exposed to external temps more than systems inside the trailer?
4. Do you add antifreeze to the black and grey tanks and continue to use them?
3: A few options. Disconnect and drain your hookup hose. Buy and use a heated hookup hose. With a full hookup, let the sink faucet run a trickle all night (which we do at home in Colorado at -15F).
4: With our foam insulated Escape we have
frozen the exposed dump valves in Fort Davis State Park, TX one morning. 2 solutions available. One - add a gallon of RV antifreeze into both tanks when empty so the antifreeze settles down into the dump valves. Or, wrap the exposed dump valves (the only non-insulated pipes on our Escape) with towels to keep the cold out. This worked a couple of weeks ago in Utah during that abnormal cold snap.