The sewage manhole is one of the elements of the installation that must be constructed in accordance with applicable standards. How to properly make sewer manholes?
Check sewage manholes at the Onninen wholesaler
Technical design of sewage networks
The manhole is one of the elements of the system, made based on a precisely made technical design. It allows you to arrange individual elements so that the whole thing works properly. It should be prepared by an entity with appropriate authorizations. The specialist will precisely indicate not only the arrangement of subsequent elements, but also the variants of individual pipes, manholes, etc.
In practice, various variants of sewage wells are used. The basic division criterion is the distinction between manholes and manholes; the former allow access to the interior, while the latter are used only for inspections and inspections. For this purpose, specialized equipment is used, and the person performing the inspection is located on the surface. The technical design takes into account all aspects and needs of a given system, thanks to which it is possible to indicate which variant of the manhole will be appropriate and where it should be located. Manholes can include through-holes, junction (collective), inlet, settling, cleaning, cascade, expansion, energy-absorbing wells and special tanks in sewage pumping stations.
The currently applicable construction law regulations do not precisely specify the requirements that the prepared technical design should meet, but the details regarding the acceptance of the sewage network include, among others: the scope of the pre-acceptance test performed. Technical designs are carried out based on applicable regulations and the guidelines contained therein, including: o The Act on collective water supply and collective sewage disposal, the Construction Law and a number of detailed regulations.
Location of the sewer manhole
Sewage manholes are not allowed 
made anywhere. Sewage systems require that pipes and manholes be placed in the road lane so that the manhole is located halfway down the lane, between the vehicle's wheels. Currently, many designers of sewage networks indicate that the optimal solution is to place 1000 mm manholes at a distance of 50 to 70 m from each other, and 1200 mm manholes at a distance of 70 to a maximum of 100 m. In turn, for buildings connected to the external sewage network, the inspection wells. In the case of concrete, they must be located at a depth of no more than 10 m, and in the case of plastics, in accordance with the PN-EN13598 standard, at a maximum depth of 10 m. The regulations also regulate the issue of the location of the manhole in terms of the distance from the foundations of the house, because it cannot be a distance less than 1.5. In turn, in relation to the external sewage network - the inspection chamber cannot be located further than 3 to 5 m.
Sewage manholes in the offer of the Onninen wholesaler
Nowadays, sewage manholes can be made not only of concrete, but also of high-quality plastics. Each solution has specific advantages and disadvantages. The components available in our warehouse, necessary to complete the entire installations, are made of the highest quality materials, ensuring excellent tightness, which is the basic parameter checked during acceptance. Plastics provide high resistance to corrosion and adverse effects of factors such as moisture or frost. Made in accordance with standards ensuring resistance to chemicals that may be found not only in sewage, but also in the ground.
The Onninen range includes PVC and PP plastic sewage pipes of various diameters, so you can choose a variant that suits your needs. By choosing shopping at Onninen, you can buy all the elements necessary to create a manhole and install it, including through wall lights with tributaries, cast iron bodies, and concrete manholes.