Ma muli o ka omo ʻana o ka wai i loko o ke kalapona ʻeleʻele, he mea maʻalahi ka hui ʻeleʻele PE i ka makū. ʻO ka manawa mālama lōʻihi a i ʻole kahi mālama paʻakikī e hoʻonui i ka nui o ka makū. Ma lalo o nā kūlana maʻamau a me nā noi, paipai mākou e hoʻomehana mua no ka liʻiliʻi he 1 hola a me ka mahana kiʻekiʻe o 90 °C.