Another factor in water pressure may be the diameter and condition of your water service line. Your community may have a program for you to increase the diameter of your service line. The other factor in determining water pressure is the pipes in your home. They may be clogged by mineral deposits from long time use. This is usually solved by replacing the water pipes in your home.
Tap water is the best choice.
A study by independent labs for the City of Toronto Board of Health in 1990, concluded that for consistently high quality drinking water and affordability, tap water was the best choice. The department does not recommend the use of bottled water or home treatment devices because the water often has inferior bacteriological quality, a highly inconsistent chemical quality, a lack of government standards and added costs that make it too expensive for many people. Recent studies around the world have linked certain concentrations of the above chemicals to long-term health risks. Toronto's water is analysed more than 276,000 times each year through the filtration and distribution process. All of the impurities detected in Toronto's water are well below the concentrations that were allegedly connected to health problems in these studies.