I-cooler ye-oyile nganye entywiliselwe i-transformer yamandla ixhotyiswe nge amanzi ukuvuza umtshini. Njengoko umbhobho we-oyile entywiliselwa isiguquli sombane esipholileyo ngumbhobho onomqolo ophindwe kabini, xa umbhobho ongaphakathi kwisifudumezi sobushushu esipholileyo uvuza, amanzi ukuvuza isixhobo sokubeka iliso siya kuthumela isignali ye-alam, kwaye sijonge ukuba kukho ukuvuza kwamanzi ngokujonga ifestile yokuhlola kwisixhobo sokujonga ukuvuza kwamanzi ngexesha lokujikeleza.