When there is a septic tank in the building, and the sewer line reaches the septic tank, two lines are made for the sewer network, the first line: The first line is connected and connected to the inside of the septic tank, and the second line: It continues until it reaches the street to be later connected to the public sewage network, before the sewer line reaches the septic tank, a stopper must be installed, as it works to allow water and others to exit from the sewer network to the septic tank, and does not allow insects, rodents or water from the septic tank to enter the sewer network inside the building.

.

If there is a sewage network in the neighborhood, the building's sewage network line is taken out to the street to be connected to the public sewage network with the need to install a "stopper".

When taking the sewer pipe out of the building to the street, the pipe must extend from the fence to the front by a distance of at least 2 m. The aim is that when digging sewage in the street in the future, there is no need to break the sidewalk as the pipe extends beyond the sidewalk, it is good to Emphasize the plumber to place the sewage pipe that extends to the street away from the car entrance or the main entrances of the building, when carrying out sewage excavation work, this causes great inconvenience in front of the building, so care must be taken that the pipe is sideways and away from the entrances.

Finally, an inspection room is built from blocks with the necessity to make a concrete formwork under this room, the purpose of the room is to access the "stopper" when needed, especially when there is a septic tank inside the building, when the public sewage network is available in the neighborhood, the sewage network line heading to the septic tank must be closed and this is done by closing the "stopper" and is achieved in the presence of the inspection room that allows us to access the «stopper» when needed.

<p class="p1

The plumber must be emphasized that all drainage points in the yard must be established during this stage, also if there is an equipment room for the pool, a drainage valve must be established to drain the pool water, and its location must be determined by the entity in charge of the pool work, if the pool equipment room is underground, a "hobby" pipe must be established that extends from the equipment room to the top and can be passed up through the fence.

The plumber must be emphasized that all drainage points in the yard must be established during this stage.

When there is a basement in the building and there is no septic tank inside the basement, the air conditioning drainage pipes should not be connected to the sewage network in the basement, as connecting them to the sewage network is a source of unpleasant odors and when there is a blockage in the sewage network, the water will inevitably bounce and enter the basement through the drainage pipes Therefore, a small inspection room must be made commensurate with the number of air conditioners in the basement, and its floor is poured with concrete and built with blocks only, so that the drainage pipes of the air conditioners are placed inside this room because the air conditioners' water is in small quantities so that it seeps into the subsoil through the inspection room.

In the case of a basement, the plumber may cut or wound the waterproofing of the basement walls during the process of connecting the drainage pipes coming down from the restrooms that are connected to the sewage network, here the insulation contractor must be present to inspect the insulation at the areas where it meets the pipes and make sure that there are no defects, and if there are cuts and others, it is treated during this stage and this is very important.

If there is a basement, the insulation contractor must be present to inspect the waterproofing of the basement walls.

It is advisable to test the sewer network using water to ensure the integrity of the extensions, after that the sewer network extensions are backfilled using clean fine sand free of stones, the sewer network must be buried directly, as leaving it exposed for more than two days may affect it.

This concludes the work of the sewage network that is being implemented in the neighborhood, and we will continue, God willing, in the next episodes, the work of extending electrical cables and so on.

This concludes the work of the sewage network being implemented in the neighborhood.