Plumbing
plumbing

A
- Main Water Line

B
- Main Water Shutoff

C
- Water Meter

D
- Water Supply Line

E
- Main Sewer Line

F
- Waste Line 

G
- Sewer Cleanout

H
- Sewer Vent Pipe

I
- Roof Vent Flashing

J
- Sewer Trap

K
- Water Heater

L
- TPR Valve (Temperature & Pressure Relief)

M
- Main Gas Line

N
- Gas Shutoff Valve

O
- Gas Drip Leg


23
- Main Water Line


The main water supply pipe brings water from the street to the home.  Older pipe materials may be 1/2" or 3/4" galvanized steel.  This type of pipe corrodes internally and may not deliver the volume of water now needed throughout the house.  3/4" copper or plastic pipe is the minimum currently used in modern construction.  Normal water pressure is between 35 and 80 PSI.  Excessive pressure can wear on valves, fittings and appliances.

24
-Water Supply Lines


Copper, galvanized, plastic and lead piping have all been used at some time for water systems of residences.  Old galvanized piping typically requires replacement  due to internal restriction.  Lead pipes present a possible health hazard if the lead leaks into the drinking water.  A form of plastic piping called "polybutylene" has shown defects from the manufacturing and installation process that causes leaks.  Your inspector is only able to tell you the condition of the visible piping.  no water quality tests are performed during this inspection.

25
-Waste Lines


These pipes carry the waste from the house to the sewer system.  It is impossible to predict waste line blockages as these can occur any time during use.  Some plastic "ABS" pipes have shown defection from the manufacturing process and can become weak and break.

26
- Fuel System

Natural gas is delivered to the house through underground pipes.  On-site fuel storage may consist of oil or propane fuels.  Some homes have been converted to natural gas from oil fuel.  These homes may have underground fuel tanks still in place which may contaminate the soil.  Your inspector is unable to determine the presence of buried fuel tanks.

27
- Water Heater


Water heaters are sealed systems which contain a great deal of pressure.  The TPR (Temperature and Pressure Relief) valve is a device designed to release excessive pressure from the system.  There should be a drain pipe attached to this valve which terminates at a safe location away from body contact.  Water heaters sometimes make gurgling noises which are typically the result of built up calcium inside the tank.
 
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