Installation intrahouse sewer system should begin with a study of the normative document - SNIP 2.04.01-85, which are the most relevant information on how to correctly mount the inner piping system to ensure its operability.

examining this useful document, determine where in your home will be located the point of connection: plumbing fixtures, sinks sinks, baths, washing machines and dishwashers.With this in mind, make a scheme intrahouse sewage, which shall consist of a vertical part - riser and horizontal pipes of lead.Decide on the amount of materials needed.

device vertical part of the sewerage system

As a rule, in a private house use
d one vertical riser pipe to which the sum of the points of connection.To use the riser pipe of large diameter, its upper part for ventilation passed to the top - in the attic or on the roof.If it will be displayed on the roof, it must be protected from falling into the waste pipe or precipitation.In that case, when you print it to the attic, under the rules, coming to her box should be located no closer than 4 meters.Typically, enough for a detached house riser diameter 110 mm, but, naturally, it should be larger than the diameter of any horizontal pipes, which will bump into it.

device horizontal part of the sewerage system

In fact, this part, though, and is called the horizontal, such is not at all - because the pipes must be laid in such a way as to ensure the flow of domestic waste, so they are mounted at an angle to the side of the riser.Naturally, the rate of discharge flow is directly dependent on the angle of inclination.Calculations show that, taking as the optimum speed of about 1 m / s, per 1 linear meter of pipe required slope of 3 cm. However, the angle of inclination depends on the capacity of the tubes.If the diameter is larger than 5 cm, the angle can be limited to 1 to 2 cm per meter tube. Smaller angles are fraught with delays and settling of larger particles in the waste water pipe in this case can be permanently clogged.

At the ends of horizontal pipes is necessary to provide hydraulic locks, preventing the release of odors from the outside waste.These traps can be arranged simply by bending the pipe in the form of a knee, or by setting it special plumbing fixtures.However, if the connection point is provided with a check valve, water seal is not required.If the system is mounted, but the house has not yet been put into operation, plumbing and appliances are not connected, it is better to protect the findings of pipe plugs to prevent the ingress of foreign bodies.

As for pipe diameters, which should ensure efficient operation of the sewer system, toilet need pipes of large diameter - not less than 10 cm for split sinks bathtubs, wash basins and sinks in the kitchen - at least 4 cm, if draining the bath and basin will be merged- not less than 5 cm.

Installation of plastic pipe

device for sewage intrahouse used plastic and cast iron pipes.The service life of cast-iron pipes, of course, more, but if you mount the system yourself, it is best to use plastic - their installation is much easier, and local repairs carried out with the eraser easier.As regards the material the tubes are made from polyethylene, polypropylene or polyvinyl chloride.If there is a choice, polyethylene pipes should be avoided quality are lower than those that are made from other materials. Note that the plastic pipe has a major drawback as poor soundproofing, so they need to wrap with mineral wool.

installation pipes plastic polymer, as a rule, does not cause difficulties even for a man who has little experience.The connection must be done at any convenient location, followed by the installation, and be sure to seal the joints with rubber gaskets.Used for docking hub and fittings.Threaded do yourself is difficult, so the handyman will be easier to use a pipe connection in which one end of the tube is inserted all the way into the socket, and the other is sealed for waterproofing rubber ring.

If you decide to use a threaded connection located on one end of the pipe coupling, on the other make the cut with a chamfer.Insert the pipe into the socket until it stops, and then pull its end, that it extends 1.5 cm. The tightness at the junction will provide the O-ring made of rubber.At the junction of the damper must be left gap, which will compensate for the change in linear dimensions of plastic pipe within a few millimeters, associated with changes in temperature.Joining plastic pipes in ways that ensure the mobility of the compound helps to compensate for this distortion.