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2. Pipe-in-pipe system - Wikipedia

   en.wikipedia.org/wiki/Pipe-in-pipe_system

   A water distribution cabinet with a pipe-in-pipe system. Internal pipes can be seen entering the external pipes in the bottom of the cabinet. In case of an internal leak, water will overflow through the external piping and can be detected inside the cabinet. A pipe-in-pipe system [1] is a form of plumbing where all water pipes are running ...

3. Cured-in-place pipe - Wikipedia

   en.wikipedia.org/wiki/Cured-in-place_pipe

   The process of CIPP involves inserting and running a felt lining into a preexisting pipe that is the subject of repair. Resin within the liner is then exposed to a curing element to harden it and make it attach to the inner walls of the pipe. Once fully cured, the lining now acts as a new pipeline.

4. Damp (structural) - Wikipedia

   en.wikipedia.org/wiki/Damp_(structural)

   [4]: 178 Moulds can grow on almost any surface and occur where there is a lot of moisture from structural problems such as leaky roofs or high humidity levels. [5] Airborne mold concentrations have the potential to be inhaled and can have health effects. [6] Externally, mortar may crumble, and salt stains may appear on the walls.

5. Trenchless technology - Wikipedia

   en.wikipedia.org/wiki/Trenchless_technology

   CIPP technologies combine a carrier (felt or fibreglass) impregnated with heat, ultraviolet light, or ambient curable resin to form a "pipe within a pipe". Pipe bursting fractures a pipe from the inside and forces the fragments outwards while a new pipe is drawn in to replace the old. [3] The other methods are primarily for fixing spot leaks.

6. Automatic bleeding valve - Wikipedia

   en.wikipedia.org/wiki/Automatic_bleeding_valve

   An air release valve on an elevated section of a large diameter lavender-colored pipe. A working system should not generate further trapped gas. Air may be drawn in if there is a small leak, or dissolved air in make-up water may come out of solution, but this generally indicates a system leak if new water is needing to be added.

7. Piping and plumbing fitting - Wikipedia

   en.wikipedia.org/wiki/Piping_and_plumbing_fitting

   [1] [2] These fittings are used in plumbing to manipulate the conveyance of fluids such as water for potatory, irrigational, sanitary, and refrigerative purposes, gas, petroleum, liquid waste, or any other liquid or gaseous substances required in domestic or commercial environments, within a system of pipes or tubes, connected by various ...