My new Coburg townhouse keeps getting blocked drains. Why?
Recurring blockages in a recently built property usually point to how the drainage was installed rather than to what is going down it. The common causes are insufficient fall in a line squeezed into a tight site, a section crushed or damaged by machinery during construction, construction debris left in the pipe, or a poorly made connection into the existing main. A CCTV inspection will show which it is — and if it is a construction defect, the footage is what you need to raise it with the builder.