A home plumbing installation isn't completed all at once but in 3 stages, to be exact: Underground rough-in phase. Aboveground rough-in phase (top-out or stack-out) Finishing phase (Trim-out or trim finish)
Cross-linked polyethylene (PEX) offers a unique benefit when used in commercial buildings. It is highly tolerant of heat and cold, and can, therefore, be used for different types of water supply applications.
Pliers are probably the most used tools in a plumber's arsenal. They offer leverage and allow you to move and grip small objects. Pliers also bend and shape wires and small rods. With pliers, you can stabilize, loosen, or tighten pipes.
PEX cannot be taken anywhere outside the house where it is directly exposed to UV for a long period. The synthetic material of the pipes can slowly disintegrate due to the light of the sun. Even light bulbs have been known to affect the lifespan of PEX water lines.