Internal drainage - to carry out installation correctly

Laying internal sewer - what is it?

Waste household water produced at the output of the sanitary appliances, such as bathtubs, sinks (sinks, washbasins), toilets, drains and scuppers (water intakes of different designs), and others. In addition, in a manor of houses is not uncommon connection to the drains networkfrom baths and showers at the estate area.

As a rule, the calculation of internal sewerage, its development and the device at the site - enough time-consuming task.Recommendations for listed works and materials for such systems are in sanitary standards (SNIP: 2-32-74 and 3-28-75).

Previously customary and traditional material to perform sewer systems were cast iron pipes and fittings, but recently more and more use is being made of plastic (polypropylene, polyethylene, PVC) pipes and fittings for domestic non-pressure sewer systems.

plastic pipes and fasonina is lightweight, quick and quality assembly of the desired configuration, reliability and ease of maintenance.To create a hermetic joints included are sealing gum and coupling respective diameters.

ease of use of such complex material system causes that made this type of sewer with your hands is not worse than experts collected.What is very important and convenient in-town conditions.

scheme of domestic sewage - that will count?

assembly and installation installation of domestic sewage should be carried out in compliance with the requirements already specified health standards.In particular, the account of the drainage norm for one person (approximately 200 l / day) allows you to choose the appropriate diameter pipes.

As practice shows, the sewage pipe should be 50 mm, for faecal - 110 mm in diameter, respectively.Requirements and standards determined by the diameter of the riser receiver, which collects wastewater from all sanitary appliances (not less than the largest diameter outlet from each floor).

beginning of all work will be an exemplary diagram of an internal drain, drawn on a sheet of paper.Made approximate configuration is detailed and gradually acquires details.Depending on where and how they will be installed devices that consume water (bath, washbasin, kitchen sink, toilets, bidets, etc.) is selected configuration guttering.

at the connection point sinks defined the necessary fittings to ensure these wastewater discharge standards.The scheme will allow a preliminary calculation of the required amount (the total length and types) pipes.

calculation of the length and number carried out with a small margin upwards.This will in the future do not "miss" by performing bias binding domestic sewage, providing moisture inside the system, and safe disposal of all the particles.For free-flow system, all waste water "gravity."

Therefore, it is important to observe the straight sections of internal pipelines and a change of direction and connection of devices made only by means of suitable fittings.

An important and obvious condition is the direction of mounting sockets of pipes and fasoniny against water flow.Those.stream must first fall into the funnel and leave in a flat part of the element.This requirement does not apply to couplings having sockets on both ends.Also obvious is the requirement for such regular socket joint sealants.

internal drainage with their hands - what to avoid and what to strive for?

During the initial calculations must take into account some outright bans.For example, can not be combined exhaust ventilation risers with ventilation systems installations, sewage pipes cross ventilation or fume collection channels.Prohibited direct connection of sanitary appliances to the horizontal portion of each connection must be made via the special siphon (water-sealed and reliable seals) with a tassel.

The risers special audit for the tassel should be provided.Installation of baths is performed with a bias towards the drain, etc. In addition, for further safe operation of laying domestic sewage should take into account the possibility of damage (required strengthening and protection), defrost (insulation work), etc.

Once defined configuration, all the places of transitions and connections, clarified the need for pipes and fittings, finally made the necessary purchases, you can begin.Internal drainage in a private house starts with ... the end.Yes, the last connection to an external drain.

This point will determine the slope, because, as stated above, all waste water goes by gravity, from the highest point in the house.How to ensure the desired slope is determined by the rate of decrease in centimeters per meter of pipe.Those.two-meter tunnel at the height of its primary side (where the bell), measured from floor level should be greater than two centimeters than the height of the final hand (docked to the next element - pipe or fitting).

By the way, experts advise to use special silicone lubricant (soap can), for their easier connections: this lubricant makes sealing rubber slippery.To carry out installation work on the pipeline, with the right to use the calculation and correct choice, almost no special tools required.

to install sanitary equipment, depending on its type and methods of attachment may require standard tools (such as rotary hammer, drill, screwdriver with set of bits, etc.) and the respective sets of mounting hardware.