Kwiminyaka yakutshanje, imboni yempompo yamanzi yaseChina iye yaphuhliswa ngokukhawuleza, kungekhona kuphela inqanaba lokuvelisa ivalve yempompo iye yaphuculwa kakhulu, imveliso yayo iye yanda kakhulu. Kodwa ishishini levalve yempompo yempompo yasekhaya aliqini, ukhuphiswano lwemarike lumbi. Ngokwembono yophuhliso lobume bempompo kunye neshishini levalvu, imveliso yempompo kunye nevalve ngokwayo ijongene nomngcipheko wokuvala umva umthamo wemveliso.Impompo yemveliso ikhula ngokukhawuleza, kungekuphela nje inqanaba lokuvelisa ivalve yempompo iye yaphuculwa kakhulu, imveliso yayo iye yanda kakhulu. ubungakanani kunye namashishini epompo yempompo yabucala kwinkqubo yokukhula ngakumbi, ebalelwa kumlinganiselo omkhulu.I-brand yoshishino ayinamandla, ukhuphiswano lwemarike lumbi.Ngokwembono yesimo sophuhliso lwempompo kunye neshishini levalvu, ishishini lempompo kunye nevalvu ngokwalo lijongene nomngcipheko wokuvalwa.