Hardly any Bristow homes predate 1980: in Linton Hall, the Census Bureau’s name for most of 20136, it’s about one home in fifty. So the galvanized supply pipe and cast iron drains that keep plumbers busy in older towns are rare here. A house from the 2004 median usually has plastic drains and CPVC, PEX or copper supply lines. The roughly two in ten from the 1980s and 90s are the ones to check for grey polybutylene, the supply pipe builders used until about 1995, which fails at the joints with little warning.
On Prince William Water’s sewer, a backup that keeps coming back is either in the house’s own drain line or out in the lateral under the yard. Digging up a lateral in Prince William takes the utility’s own permit and inspection, so the camera goes in before any shovel does. A sewer camera inspection, added to a visit we’re already making, shows whether you’re looking at a root, a sag or a break, and how far out. A storm is often when that shows. Prince William Water counts rain and groundwater leaking into sewer lines through defects among the causes of overflows, and when a house backs up it asks you to check with the neighbors: if their drains are slow too, the trouble may be in the main, which is the utility’s to fix.
If your house sits beyond the public mains and runs on a septic tank, Prince William County’s code wants the tank pumped at least once every five years, and the Prince William Health District permits and inspects onsite systems. A slow drain on a septic house can be a full tank or a blocked line between the house and the tank. A camera run from the cleanout tells you which before anyone pays for a pump truck.
If a septic system fails and the Health District finds no way to fix it on the lot, the county’s sewer plan encourages connecting to public sewer when the property line is within 300 feet of a line with room for it. Prince William Water doesn’t force anyone onto its mains, but in an unserved area the owner pays to extend a line, plus the utility’s availability fees. Worth knowing before you price either option.