The First Wall

Our new heating system produces an awful lot of waste water. Unfortunately the installers didn't tell us about that, so as the weather has become colder the production of water has gone skywards. As a makeshift solution we have to collect it in plastic boxes, where it freezes in no time at all. The result is that I'm thinking of building an igloo. Looks like the first wall has been completed.
Whenever it all thaws out I will turn my attention to some sort of a solution even if it means digging a big deep trench to collect the water/ice.