Earthship cooling tubes are working!

It's unseasonably hot here for April. It's 27C (around 80F). So we opened up the cooling tubes, which we had closed off from the outside for the winter. They work SOOOO well! It truly feels as cool as an air conditioner or a fridge, and this is before the entire system is finished, with roof vents, insulation and window walls separating the greenhouse from the living space. In the meantime, it's so nice to have a cool spot to escape the heat while we're working. Game changer! The Bastard Tirehouse - Eastern Ontario Canada.