Winterizing

Will this winterizing technique work? I put a sump pump in a 5 gallon bucket and connected it to the city connection. I put 2 gallons antifreeze in bucket. Turned on Pump. Opened each Faucet, shower, toilet ect until Pink RV Antifreeze flowed. I also drained my Gray, Black and Fresh. My question is, How do I protect the DC Fresh Water Pump as anti freeze never pumps through it using City connection. Also the manual says drain Hot Water heater. Where do you do that?   There are two low point drains on the bottom of RV. Do I open them? Once power and battery is disconnect for the winter, do I open all faucets to allow for expansion. Did I cover all potential problems? I dumbed the rest of the Antifreeze down the toilet

The anode rod uses a 1-1/16"socket. Suburban's specifications say that if the anode rod has lost 75% of its original weight, it should be replaced. Unless you have a brand new one to weigh for comparison, it will be hard to tell exactly. However, if most of the metal is anode is corroded down to the metal core wire, it is probably time to replace it.

Please ensure that the HW tank is COLD before you remove the plug. The last thing you need is to be hit with a gusher of scalding hot water.

As for antifreeze, I used the winterizing connection and the pump to pump RV antifreeze through my system. The tank, once drained through the plug should be fine. I did want the pump protected, something which air purging of the lines does not do.

Just use the pump accessory hose and it is very easy!