Based on the title of the article "Fix-it Right Plumbing hits milestone of 20 positive reviews from Adelaide", it appears that the main topic is plumbing and its relevance to a specific city, in this case Adelaide. Plumbing plays a vital role in ensuring the safety and functionality of our homes, businesses, and public spaces. In Adelaide, where the harsh climate and strict building codes demand top-notch plumbing services, Fix-it Right Plumbing has proven itself to be a trusted name for reliable and efficient plumbing solutions. With 20 positive reviews from customers across the city, it's clear that their commitment to quality and customer satisfaction is unmatched.