Water Pressure and Standard Variations What a Buyer Should Know

Homebuyers are often concerned about the wateraccurate reading of the water pressure at a given
pressure at a home they plan to purchase. On theproperty. Normal water pressure is in the range of 40
other hand, to complicate matters, it seems that noto 80 pounds per square inch (PSI). This gauge will
two homebuyers agree on what is satisfactorygive an average reading and, during the day, it will
water pressure. Realizing that, home inspectors try tochange a bit depending on the number of fixtures
provide their clients with a water pressure readingthat are being operated and other variations that
that they can analyze and evaluate on their own.affect overall water pressure.
Homebuyers often ask the home inspector about theWater pressure around 40 PSI or below, while not
water pressure at a prospective property. Is it good?uncommon to find, usually means there is not much
Is it bad? Unfortunately, water pressure is prettypressure to spare if more than one fixture or
much subjective. What one person thinks is greatappliance is running at a time; for example, trying to
pressure could be a mere trickle to another person.shower while the dishwasher is running could be an
Those people who are used to obtaining their waterordeal. Water pressure above 80 PSI is not good for
from private wells are often less critical of waterhousehold appliances -- washing machines,
pressure than those individuals who are accustomeddishwashers, and hot water heaters. Consistently high
to getting water from sophisticated municipal waterwater pressure can damage or significantly shorten
systems.the design life of appliances. If you are buying a
Since water pressure is largely subjective, the besthome, your home inspector should try to check the
thing to do is to measure it so homebuyers canwater pressure for you. If, on the other hand, you
decipher and evaluate the numbers themselves.are merely a curious consumer who wants to
There is a device known as a water pressure gauge.investigate this matter by yourself, an accurate but
This portable meter screws onto an outsideinexpensive water pressure gauge can be purchased
hosebibb, or inside at the laundry area, and gives aat almost any hardware store.
homeowner, a plumber or a home inspector an