I am interested in possibly switching from the Gravity fed water system to a pressure regulated one. I have my rats in a detached garage. My main concern (past it now really) is in the winter time I have to carry buckets of water from inside the house to the garage. Making the trip a few times sucks even if it is only once a week. My thought was if I used a pressure regulated system and enough water was used I could keep my hose on and with a little flow would keep the line hose from freezing. Is this a possibility or am I just dreaming? If it is possible any clue how many tubs it would take to use enough water to keep the lines from freezing?