Ishawa yephuli yangaphandle: isincedisi sephuli esibalulekileyo esinobuhle kunye nomlinganiswa wobuqu egadini, eneemodeli ezininzi.
Iindidi ezinokubakho zeshawari yasepool: ishawari yepool enewasha yeenyawo, ishawari yepool eneflowmeter, ishawari yelanga yepool…