Inspection wells for sewerage: inspection, well for drainage, plastic water supply, device

inspection chambers differ in size and material of which they are made sewerage and drainage system requires constant monitoring and, if necessary, treatment. For this purpose, I equip manholes. They become the place of mule subsidence. Due to this, periodic cleaning can be carried out.

device and variety of manholes

drainage and sewerage system requires periodic inspection and cleaning. For these purposes, construction inspection wells are being constructed. This is an obligatory part of sewerage, drainage and even running water. The arrangement of such elements is not easy.

Plastic manholes have a long life and compact size

Driving manhole:

• cover;
• Foundation;
• Working part;
• Throat;
• Tray.

The shape of the viewing structure may be different. Allocate a round and square well. The foundation is reinforced concrete blocks, laid on rubble. The main feature of the system is the tray into which the pipeline enters at the entrance to the well.

The upper part with the hatch should be accessible for monitoring the condition and cleaning of the sewage and drainage system.

The bottom of the tray is in the form of a pipe. The material of manufacture is concrete, which should be well wiped. In certain situations, iron is used. Shelves are installed on each side of the trays, which are used by workers.

Classification Manhole:

1. Control. It is a drainage well to control the drainage of water in the yard. Are located exclusively behind the red line of construction.
2. Rotary. Mount in the place of changing the direction of movement of the water pipe. The shape of such a well is similar to the turn.
3. Differential. Installed at different levels of the supply and discharge pipes.
4. Washable. Used in the starting areas, so at low speeds, the liquid can form a residue and you will need to rinse the pipes.
5. Linear. They are used exclusively on straight parts of the pipeline. The interval between the structures is determined from the diameter of the pipes.
6. Nodal. They are equipped in the connecting sections of several parts of the pipeline. As a rule, such a well contains 3 pipes.

The dimensions of the manhole must allow free movement inside to perform drainage care. The wall of the chamber is equipped with steps or staples for descent. Usually the depth of the sewage well is 18 m. The neck and hatch are considered the final elements of the wells. For their manufacture use pig-iron or plastic.

plastic, concrete and other manholes

inspection chambers can be made by yourself or buy ready-made factory model. The design design must be approved by the utilizing organization. Industrial variants are made from plastic, concrete or composites.

You need to choose a manhole depending on the financial possibilities and the amount of water that will be supplied to it

For self-construction, use brick and buta. When equipping the well with their own hands, consider the resistance of materials to cold and humidity. Each material has its own characteristics, positive and negative points of use.

Advantages of using concrete:

• Water resistance;
• Reliability and durability;
• You can do it yourself on the site of construction;
• Affordable price.

The density of concrete is 2.5 times that of water. But there are also negative aspects. To build inspection wells from concrete, the use of lifting equipment will be required. There are also difficulties in creating holes for pipes.

Plastic wells are used for pipes up to 40 cm. The material has many advantages. Among them is a simple and quick installation, a small weight of the design is airtight. Among the minuses are high price, low strength.

When buying a plastic well, you need to pay attention to the loads that the structure can withstand. This is especially important when installing sewerage equipment on the roadway.

Brick options are similar to concrete. Among the advantages noted the possibility of acquiring the necessary dimensions. But this construction requires a lot of time.

Installing a manhole for drainage

The inspection pit is an integral part of the drainage, as the sewage system requires constant monitoring and cleaning. Wells are placed at a distance of 35-50 m in a straight line. An observation structure is also envisaged for cornering through one and at pipe sections.

For a manhole, a 46 cm pipe is required. This is sufficient for flushing the structure from the hoses. If it is supposed to descend into the well, the pipe diameter should be 92.5 cm.

The plastic device is simple to install, but expensive. To save, each component is purchased separately. It will take a plastic bottom, corrugated pipe, seals.

The hole for the manhole can be excavated without the use of an excavator

Steps for installing a manhole:

1. Preparing the pipe. It is necessary to measure the desired length and cut off. It is also important to provide holes for the input and output of pipes. Mount the seals.
2. Bottom mounting. It is necessary to dig a ditch, equip a pillow of sand and gravel and make a cement screed. After drying, it is necessary to lay geotextile.
3. Installation of a well. We equip the bottom. A pipe is mounted on it, connected and smeared with bitumen. Further the pipes are piped. All joints must be sealed.
4. The well is filled with rubble.
5. The hatch is mounted.

Plastic well is easy to equip. It will be easier to create a finished plastic model. Concrete construction done without the help of professionals is much more difficult.

Features of a manhole for a water pipe

The construction for a water pipe must also be equipped with manholes. Revision design is a dry type of device. A shut-off valve is installed in the inspection well. It is necessary for emergency shutoff of water supply.

Styrofoam, dry leaves, sawdust can serve as a material for insulation.

Wells are mounted special systems for redirecting the water supply to the desired distance in the area. In certain cases, a fire hydrant or pump may be installed in the structure. It serves as a water intake equipment. The warming of the well is provided without fail.

Where to install a revision well for sewage( video)

The inspection well in the drainage system is a prerequisite. You can arrange this element yourself if you want. Simpler in the installation are plastic inspection wells.