Sewer camera inspection in Bristow.

Bristow’s sewer lines are young. In Linton Hall, the Census place covering most of 20136, about three in four owner homes went up after 2000, and only about one in fifty before 1980. So a typical Bristow line is PVC. Orangeburg, the tar paper pipe buyers in older towns worry about, went into houses built before the early 1970s, and there are hardly any here. So in Bristow the camera checks the ground as much as the pipe.

On Prince William County’s own soil map, about seven tenths of the land inside Linton Hall is Category III, its problem soils, and nearly all the rest is Category II. Category III takes in high shrink-swell soil, compressible soil, undocumented fill and floodplain; Category II, a seasonal or perched high water table. Plastic pipe follows the ground it sits in, so a joint can pull open, or a run can drop where its trench gave way.

Prince William Water’s current standards spell out how a new line goes in: its own connection to the main for every lot, a brass-capped cleanout at the property line, and a camera run from the property line to the house before the county accepts it. Any look a Bristow line got when new was about twenty years ago, before the yard grew in.

About three in ten Bristow homes are townhouses, and Victory Lakes alone has 609. With a connection per lot, a backup in one unit of a row usually starts in that unit’s own line, not the neighbor’s. If a house here drains to a septic tank instead, the camera can still show the pipe out to the tank, but the tank and drain field are a septic contractor’s work. SwiftPro does no septic work.