Como Purgar Un Termotanque

How is the hot water tank discharged? 3

Does it just open the drain? or something else...

The water tank washes itself, there will never be air because it is always full of water. Drain 20 to 30 liters of water every 30 days through the faucet with control on Realidaqd. This is not rinsing, but removing the remaining water!

Como Purgar Un Termotanque

Yes, through the vent valve. I recommend doing this every 60 days or more.
Empty 15 or 20 liters into the drain tap of your hot water tank, don't worry about what comes out. Happiness
Do I have to pay for the tank to make a plus sign or not?