How to drain water from the boiler? Helpful Hints – Setafi

If you have a country house or a small estate, but do not live in it during the cold season, then this article is for you. Or suddenly the boiler broke down - the most popular query on Google. Here we will tell you in just 5 minutes how to drain water from the boiler, what it is for and how to do it in just half an hour of work.

The main reasons to drain the water from the boiler

This procedure is quite infrequent, but sometimes it is very necessary. Consider the most popular reasons among users of water heaters:

1. Replacement of electric water heaters (heaters). Over time, they wear out or break, and all the parts are in the tank itself.
2. Element maintenance and scheduled cleaning. If you are a diligent user of electrical engineering, know all the rules of use and read the instructions, then you probably know that the boiler requires cleaning at least once every 1-2 years. Also inside the tank is a magnesium anode, which allows you not to worry about excess scale and corrosion. Over time, it depletes or decreases in size - you need to insert a new one and clean the tank. And for this it is necessary to drain all the liquid.
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3. Failure of the power supply, thermostat and other control settings. To carry out a successful repair, you need to remove the tank. And it happens at 10, 20, or even 50 liters - not everyone will be able to lift such a “colossus” from the brackets. In some situations, it is not possible to do without draining the water at all, for example, to replace tubular gaskets.
4. Emptying the entire system for further cleaning. Immediately after you installed the boiler, brought the taps to it and decided to use hot water, the first harmful substances entered the device. Among them: salt, scale, rust and so on. Over time, there will be a lot of such “good”, believe me. If dangerous deposits are not dealt with, this will also affect the quality of incoming water for drinking or washing. Also, the environment inside the boiler is a paradise for the reproduction of bacteria and microbes. The only way to eliminate all harmful consequences is to regularly open the tank lid and wash the equipment. And before that, drain all the water.

How to completely drain the water from the water heater - we will present you with several effective methods that can be applied to absolutely any system in the next paragraph.

How to properly drain water from a water heater through a faucet

This option is for the most "dummies" in the business of household appliances. Since the process is irreversible and will have to be drained regularly (at least for the master), even at the installation stage, you can install a separate faucet. It is mounted near the mixer for supplying cold water. The most important thing is not to confuse the tap for loading water and draining, these are two different options. And then you will start releasing liquid and turn everything into a huge pool.

Before opening the drain, a hose is installed on it, which is connected to buckets or basins. And on a note: the hot water tap can be unscrewed in the bathroom or in the kitchen so that the process goes many times faster and all the water is outside. The advice is valid for any type of water heater.

How to properly drain water from the boiler through the fuse

On the cold water pipe, in addition to the mixer, one safety valve and a pressure sensor must be installed. The first has several functions: to prevent hot water from entering the system for cold water to enter. - and you won’t have time to look back when there is nothing in the heater, and it will go straight from the toilet like a fountain boiling water. It is, of course, useful for hygiene, but very uneconomical.

The second goal is to prevent the destruction of the walls of the boiler during heating. When liquid enters the tank and heats up, excess pressure is formed. The valve relieves the unnecessary part of the pressure. So the tank always remains completely safe for use in a house or apartment.

Modern valves allow you to drain water directly from the tank. To do this, you can find a special lever, when pressed, the water will flow in the opposite direction. The method is working, but less effective than the previous one - it loses in terms of descent speed. Best used when a separate drain mixer is not available.

How to drain the water from the boiler if there are no previously proposed details

Very often a problem arises when there is neither a mixer nor a valve. This is due to the negligence of the installer, who either did not know about the purpose of the devices and did not install them, or saved on components. Also, older versions of water heaters are equipped without drain.

But still, do not despair. There is a way out, though more difficult.

First you need to shut off the water supply to the system by turning off all the taps. It will not work to drain water through cold pipes, since the pressure valve simply will not allow all the contents to flow out. Therefore, first we unscrew the valve, and only then we release all the water through the cold “entrance”. For this, almost nothing is required - a pair of keys for the valve nut or a plumbing wrench with adjustment.

Always leave the hot outlet covered. Using the keys, turn the faucet along the thread until the water flows. You can adjust the flow by tightening or unscrewing the nut.

The process is exhausting, but if there is no other - and thanks for that.

And finally, additional rules about how to drain a boiler:

• always turn off the power supply to the entire system;
• if you need to drain everything from the tank, turn the cold water supply inside;
• do not drain all the contents immediately, you need to wait for the temperature inside to drop to room temperature. You won't pour boiling water on your hands, will you?

These rules will help everyone cope with a fairly simple task that is regularly required for a heater.