Hello. Most likely, the presence of red water in the tap may indicate the presence of rust in the water supply system. If the problem is corrosion in your home, you may need to replace your old metal pipes with newer, less corrosive materials. Read about safe sanitation https://www.businessporting.com/the-role-of-plumbing-in-ensuring-public-health/ to understand how important it is. It is better not to delay such questions and contact a specialist in a timely manner.