difference between hot and cold PPR water pipes

ʻO ke koho a me ka hoʻokomo ʻana o PPR (Polypropylene Random Copolymer) pili pono nā paipu a me nā pono i ka palekana a me ka maʻalahi o ka ʻōnaehana wai ʻohana., pale wela kiʻekiʻe, maʻalahi…