The answer to 'why is my pipe low water pressure' is that there are several common causes, including mineral buildup, leaks, or problems with the main water supply. Low water pressure can also be a symptom of a more serious plumbing issue.
Some common causes of low water pressure include: mineral deposits or corrosion inside the pipes, a leak in the plumbing system, a problem with the main water supply line, or a faulty pressure regulator. Symptoms may include low flow from faucets and showers, and difficulty getting enough water pressure for appliances.