Homes are now commonly plumbed with crosslinked polyethylene $($PEX$)$ pipe rather than

copper. PEX is significantly cheaper $(20$x$)$ than copper and does not require heat or

solder to join. Note that the water meter $($which measures the volume of water passing

through when it enters the house$)$ must be plumbed with copper, and connects to the

municipal service line, which is $1"$ steel.

Create a list of pipe, fittings, and instrumentation required for plumbing a house with $1$

four$-$piece bathroom, $1$ two$-$piece bathroom, a kitchen, and a laundry room, using PEX.