If you have a roof over your head, you also use sinks, toilets, showers, and baths every day - and they're all linked to your home's plumbing system. Now, if you need significant plumbing work done, you'll probably need to call a licensed plumber. But there are things that you or your knowledgeable mate can actually do yourself. And to get it done, you'll need a toolbox with some basic plumbing tools inside. What plumbing work can you DIY? For most plumbing and drainage work, you'll need t..