Advices

• 1
  The installation of PP and PVC sewer pipes with flared joints with a PVC gasket is done by pushing the spigot end of the pipe or fitting into the socket of the previous element. For facilitating the connection the spigot end should be applied with a thin layer of a lubricant Sanskid to ease the pipe into the socket.
• 2
  Remember to secure the pipes against freezing should there be a need to lay them along the external walls or in places exposed to external air access, also under the floor of a house where the temperature may drop below 0^oC.
• 3
  Remember also that the best installation temperature is between 10^oC_20^oC, and when the temperatures are lower, the gasket should be soaked for a while in hot water because gaskets harden in lower temperatures. Internal PP and PVC sewage system pipes should not be installed in temperatures below 0^oC.
• 4
  The covering of horizontal outgoing lines from the PVC pipes under the floor should be at least 0.5 m (it is prohibited to lay them directly under the floor on hard concrete surface). In passages through dividing structures (e.g. strip foundations, load bearing walls) the pipes have to be laid in a protective sleeve, whereas the sleeve cannot contain a pipe joint and the sleeve should be filled out with elastic sealant.
• 5
  The sewer ducts in surface under the floor should be laid on a sand bedding 15-20cm thick. In class I-IV soils the bedding does not have to be prepared. The bottom of the excavation should be done in natural soil or secured against soil settlement along the sewer line course.
• 6
  Horizontal branch drains directly adjacent to residential rooms have to have acoustic insulation. Thermal and air insulation in wall chases should not be thinner than 2cm.
• 7
  Wall chases may be covered up after partial takeovers. It is not permitted to cover up wall chases with construction materials.
• 8
  The spigot end of the pipe should enter the socket at its full length thus it is worth to mark on the outside how deeply it should be inserted.
• 9
  Sewer pipes have to be fixed to a stable surface (e.g. a wall) with the use of plastic holders spaced along horizontal and vertical sections every 1 m and under every socket

  • install the sockets every time directly before and after stop valves
  • every time use holders under T-pipes on branch-offs from stacks with an additional muff under the holder as a stabilizing point
  • use only holders with a rubber insert or made of plastic.
• 10
  Polyurethane foam insulations should not be used.

• 
  While storing and transporting plastic pipes the weather conditions should be monitored constantly so that the products are not subjected to harmful external influences and internal stress.
  Pipes and fittings should not have contact with any other material that might damage plastic (e.g. on the floor, while storing and transport or inappropriate tools and reloading methods).

  • do not allow a manner of storage which might result in deformation (bends, crushing, etc.)
  • dot not allow elements to be thrown down.
• 
  Plastic has limited durability to increased temperature and UV radiation, and thus they should be protected against:

  • extended exposition to sun,
  • excessive heating from heat sources.

  Pipes intended to be stored for longer periods should be kept in closed and roofed in location.
• 
  Pipes should be stored in their original packaging (in stacks) on flat surfaces free of stones and sharp objects. Stacks pay be placed in layers, one on top of the other, however, not higher than 1.5 m. Storing pipes that are not packaged, use wooden side supports spaced at least every 1.5 m. Pipes or different diameters should be stored separately and when this is not possible pipes of bigger diameter and thicker walls should be placed at the bottom. The manner of storing PVC pipes cannot cause pressure on a pipe’s socket resulting in its deformation, thus the pipe socket should be protruding in such a way so that the pipe endings in the higher layer did not lay on the pipe socket of the lower layer. The pipe layers should be stacked interchangeably. Throwing pipe elements or dragging them along the floor is not permitted.
• 
  Pipes in packages have to be transported in cars of the appropriate length.
  Bulk transport requires that the pipes rest on the floor along their whole length and the vehicle should have side supports spaced at least every 2 m.
  Pipes sockets cannot be exposed to strain. Pipes cannot be longer than the vehicle by more than 1 m.
• 
  Fittings in packagings resistant to rainfall may transported with any means of transport, whereas those in non-resistant packagings – only by covered means of transport. Packagings should be placed on the whole surface of the vehicle and protected against shifting or damage.
  The height of storing fittings in bulk or in flexible packagings cannot exceed 1.5 m.
• 
  Fittings and other materials (e.g. gaskets, cleanings agents) should be stored in an orderly fashion in original packaging marked following the above-described principles and precautionary measures.