Cold tap problem sounds like there's a 'dead leg' somewhere on the system containing air. As far as the hot is concerned, please give us some more info as to what system you have , and how your water is heated.
DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!