Installation of vacuum sewer valve
In what cases is the installation of a vacuum sewer valve necessary? It is required when the house during its construction was not carried out installation of ventilation sewage flow, as well as, if the sewer riser can not be brought to the roof.
What is the purpose of the vacuum valve in this case? Consider its principle of operation. Since the pipes connected to the toilets in the apartment building are connected to a common sewer system, gases also accumulate there. Considering that a lot of hot water gets into the central sewage after washing dishes or bathing, the fumes heat up from it and, according to the laws of physics, rush upwards.
In apartments, the solution to the problem of smelling the room is to tighten the plug on the riser and install a water seal. However, (if there is no ventilation on the riser), a strong water flow after flushing the toilet can create a vacuum in the pipeline. In turn, this vacuum completely sucks the contents of the hydraulic lock in the vicinity. As a result, an unpleasant odor soon appears in the room.
The vacuum valve can be installed not only in the apartment, but also in a private house. However, it is useless to use it to eliminate the sewage problems of the entire riser in a house with more than two floors.
Tip! It is forbidden to cut off a funnel riser going to the attic in a high-rise building at its own discretion, in order to replace it with a vacuum valve. This will lead to the fact that the residents on the upper floors will no longer feel various unpleasant odors, but those who live on the lower floors, on the contrary, will begin to feel them more strongly. Therefore, if it turns out the reason and who exactly redid the strut on the valve, will have to return everything back. It may also be necessary to pay an additional fee to public utilities.
The essence of the vacuum valve
The vacuum valve is quite capable to come up instead of the exhaust pipe, which usually ends many sewage risers. Such a pipe, as a rule, is needed so that unpleasant smells leave the system through it, and fresh and clean air flows back into the sewer pipeline.
Why buying and installing a valve is the right decision? After all, as it seems, it is possible to take and do everything the way it has been done for decades. If to understand, in old systems there are serious shortcomings. Since a pipe is drawn through the roof, the hole made for it must be carefully and properly sealed, otherwise water will flow through it. At the same time, as you don’t close it, sooner or later there will still be a leak there, therefore, it will be necessary to carry out work to replace the coating there very often.
There is also the possibility that the outdoor riser will freeze in winter. If this happens, the air will not be able to rise normally through the pipe and go outside, therefore, the efficiency of the system will greatly decrease. In addition, birds often like to hide in pipes in winter. If it gets stuck there and dies, you will have to clean and repair the riser. And if there are many such risers, it means that the number of pipes on the roof will increase in order, and with them the number of the above problems will increase.
Installation of the vacuum valve
If the pressure in the sewer system is normal, the valve will be in the closed position. Then he will be able to prevent the ingress of unpleasant odors in living rooms and other rooms. In the same cases, when a vacuum occurs in the pipe after flushing the toilet bowl (s), its internal device is activated in the valve, thanks to which it allows air into the system to stabilize the pressure.
Vacuum valves can be used for local aeration. In such situations, it is mounted on the pipes of sanitary appliances, which will consume a lot of water.
There are certain rules on how to properly install the valve, so that its quality work nothing interferes:
- The valve should be installed higher than the junction point of the device on the sewer riser.
- Installation of the valve is carried out in rooms where proper ventilation is arranged (this could be the attic of the house, the bathrooms provided with ventilation even during construction, etc.).
- The vacuum valve can be put only on those pipes that are fixed in a vertical position, since the air in the horizontal position will not go out so well.
Vacuum valves - for and against
The advantages of vacuum valves include the fact that when installing them do not need to punch a hole in the roof for the device pipe. The whole process takes very little time and is quite simple. This also includes several other factors:
- On the roof does not appear one or two extra pipes, which usually only spoil the look of the house. This is due to the fact that the vacuum valve is installed under the roof, therefore, the whole ventilation system ends there.
- Fan stand does not need periodic maintenance and scheduled repairs.
There are minor flaws. Unfortunately, the vacuum valve is able to withstand only the small loads that sewage can give. And the price of such a valve is decent, considering that it is assembled by hand.