ʻO kahi hale ʻauʻau ʻo Virserum kahi wahi ʻauʻau liʻiliʻi me kahi wai ʻauʻau wela e ana ana iā 12,5 x 6 mika. He hohonu ka loko wai mai 0,9 a 1,5 mika. 6 mau lā i ka pule, mālama ka loko wai i kahi mahana o + 30 kekelē. Ma waho aʻe o ka wā ʻauʻau o ka lehulehu, he manawa pono kā ke kula a me ka ʻohana rumatika.
