I have an old kitchen sink connected to a concrete drain under my house via some very ancient metal pipework. Recently several leaks have developed at various places between the sink and drain and I was wondering if it is legal (im just a DIY guy not a licensed plumber..) to replace the entire pipe with PVC, myself.
I live in Queensland and its hard to find any legal info on this subject however I figured some knowledgeable people here would know!
Cheers,
Gabriel