Babban rashin daidaito a cikin jiki PPR ruwa bututun ne:

High zafin jiki juriya, matsin lamba juriya kadan m, dogon lokaci aiki zafin jiki ba zai iya wuce 70 ℃; Kowane dogon yana da iyaka, kuma ba za a iya lankwasa ginin ba, idan bututun ya kasance mai nisa ko kusurwa, a cikin ginin za a yi amfani da yawan haɗin gwiwa; Bututun yana da arha amma farashin kayan haɗi yana da yawa. Duk da haka, daga hadaddun aiki, PPR bututun ne a halin yanzu mafi inganci kudin bututun, don haka ya zama gida ruwa bututun gyara kayan.

Idan aka kwatanta da sauran nau'ikan bututun: bututun ƙarfe na galvanized saboda rashin amfani da yawa, Ma'aikatar Gini ta hana shi a cikin 2000; Aluminum filastik bututu ko da yake high zafin jiki juriya da kyau, gini mai sauki amma lokacin da ake amfani da shi a matsayin zafi ruwa bututu, saboda dogon lokaci zafi inflation sanyi shrinkage zai haifar da bututun bango mispositioning da ya haifar da leakage; Jirgin karfe bututun m, muhalli-friendly, amma ba a yadu amfani da shi saboda high farashi, high gini bukatun.

PPR roba ruwa bututun amfani da wani lokaci bayan, bututun ciki bangon biyu gurɓataccen matsala, shi ne bacterium, Legionnaire bacterium, zama sabon mutum lafiya kashe mutane da kuma yiwuwar rayuwa barazana, ba ya dace a yi gida tap bututun.