Originally Posted by trailraider
I need some help with draining my hot water tank. I took the node plug out and drained the water from that. is that all I need to do to drain the tank so it does not freeze?
The way i do it is first make sure the water heater is off, locate the breaker in the electric panel and shut it down, then open your low point drains, then open all of your faucets, bathroom sink, shower, kitchen sink and don't forget the out side shower if you have one, then i go to the water heater on the out side and then I remove the anode rod at this point the water will rush out of the water heater, then i open the relief valve, now if you push the relief lever all the way up as far as it will go it will lock in place and stay open. Once the water has stopped flowing you can stop at this point but i do one more thing i use a hose with a spray nozzel and flush out the water heater.
I do not reinstall the anode rode, i install a rubber plug in it's place and in this rubber plug it has a small hole in the middle of it so air can help dry it out over the Winter. During the Winter i leave all of the faucets and low point drains open. One other thing to do and remember, if you have a water filter on your unit you should open the cylinder and remove the filter and the access water if not it will freeze, once the cylinder has been remove and the filter and water is empty re install the cylinder only.
After i do all of the above then i hook up an air hose and blow out the lines and then I am done.
The last two things I do to complete the water system is to pour RV anti-freeze in all of the sink drains to fill the traps and then i prop the flush valve open to the toilet but not all the way to where the flap is open, the reason for this is because if there is water in the the discharge line to the toilet and the valve is closed it will freeze and crack the flush valve. I use a piece of PVC pipe and prop it against the cabinet on one end and against the flush handle to hold it open at the other end.
Everything that is mentioned above that is open stays that way until Spring.
Other members may do some thing different but this works for me.....You may notice that i did not say anything about pumping anti-freeze in the water line and that's because i don't like using it but that's just me..Good luck.