Big, You may want to look into PEX type of water line. A plumber may be able to answer your questions better.
I do use a piece of plastic 4" pipe in the winter for my sump pump (sewer line pipe). The sump will run in the winter if we have winter rains which we do sometimes. The pipe will not freeze with water in it but it is on a 3 to 1 slop.
PEX is an acronym for cross-linked polyethylene. The "PE" refers to the raw material used to make PEX (Polyethylene), and the "X" refers to the cross-linking of the polyethylene across its molecular chains. The molecular chains are linked into a three-dimensional network that makes PEX remarkably durable within a wide range of temperatures, pressures and chemicals.
•Flexible, installed with fewer fittings than rigid plumbing systems. A good choice for re-piping and for new homes. Works well for corrosive water conditions.
•It can stretch to accommodate the expansion of freezing water and then return to its original size when water thaws. Although it is highly freeze-resistant, no material is freeze-break proof.
Jim W.