If there is going to be any running water at all in the remodel or the new edition, a professional plumber should be called. Plumbing is not a do it yourself sort of project. Projects as big as remodeling or building an addition, will need a professional plumber. It will cost less in the long run, by minimizing potential problems – it will also cost less because it will avoid the fines many localities charge non-professionals who engage in major plumbing work.There are a lot of factors riding on the size and type of the water feature to be installed, so be sure of all the details before talking to the plumber.