New City Trenchless replaces failing water service lines across Rockland County by pulling new Type K copper or HDPE through the path of the old pipe, with one small pit at the curb stop and one at the foundation instead of a trench across the front yard. It is the pressurized-side cousin of trenchless sewer work, and it is a different job in almost every detail that matters.
A Water Service Line Is Not a Sewer Lateral
A sewer lateral is gravity pipe: 4 to 6 inches in diameter, laid to a slope so waste falls toward the sewer main, and it fails inward, by root intrusion and infiltration through open joints. A water service is the opposite animal. It is 3/4 inch or 1 inch, runs under constant street pressure, needs no fall at all, and fails outward, pushing treated water into the soil day and night. There is no cleanout to open and no CCTV crawler small enough to drive through it, so diagnosis leans on the meter, pressure readings and listening equipment rather than a sewer camera.
What Gets Pulled In: Type K Copper and HDPE
The old service is traced and marked with a locating sonde, then two pits are opened, one at the curb stop and one where the line enters the foundation. A cable goes through the old pipe and a splitting head, the small-diameter cousin of a pipe bursting head, is towed back through, opening the old line and drawing the new one in behind it in a single pull.
Type K copper is the heaviest-wall copper made and the traditional direct-burial choice. HDPE comes as one continuous coil, so the finished line has no joints anywhere under the yard, buried below the frost line either way. The new line is pressure tested and flushed before it goes back in service.
What Fails Under Rockland’s Postwar Yards
The same subdivisions that got vitrified clay and Orangeburg on the sewer side of the trench got galvanized steel or early copper on the water side. Galvanized steel corrodes from the inside out: the bore closes up over decades, pressure at the far fixtures drops, and the first draw of the morning runs rusty. Early thin-wall copper fails by pinhole leaks instead. One local footnote: Orangeburg fiber pipe was never a water material, so whatever is carrying your drinking water, it is not the hometown pipe.
The Lead Question Without the Scare Tactics
If your home predates roughly 1950 and the service has never been replaced, lead is possible, not certain, and it is worth twenty minutes to find out. The scratch test at the meter in the FAQ below settles most cases, and water suppliers are now required to inventory service line materials, so yours may already have your answer on file.
If the line is lead, replace the full run in one pull. A partial swap that leaves half the lead in the ground disturbs the pipe without removing the problem. What the situation does not call for is a scare quote signed on the spot: a lead service that has sat undisturbed for 70 years does not become more dangerous during the week you take to get a second bid.
Signs the Service Is Already Leaking
The classic test costs nothing: shut every fixture off and watch the meter. Movement with no water in use means the line is losing water somewhere between the curb and the house. Softer evidence includes a permanently soggy strip or an oddly lush green line in the lawn along the pipe path, a hiss at the meter, or pressure that has faded year over year. A pressurized leak runs around the clock and never heals, which is why trenchless water line replacement is usually scheduled within days of the meter test, before the water bill does the scheduling for you.
Frequently Asked Questions
Can you line a water pipe the way you line a sewer?
Not with the same system. The felt liner tube and epoxy resin used in CIPP sewer lining is built for gravity pipe in the 4 inch and up range, not for a pressurized 3/4 inch potable line. For residential water services the reliable trenchless answer is pulling in a new pipe, not lining the old one.
How do I check whether my service line is lead?
Find the pipe entering your water meter and scratch it gently with a coin. Lead is soft gray metal that scratches shiny and does not attract a magnet. Galvanized steel holds a magnet, and copper is copper colored. Your water supplier may also already list your line in its service line material inventory.
How long does a water line pull take?
Typically a single day. The pits are opened in the morning, the new line is pulled, pressure tested and flushed, and water is back on the same evening. Yard restoration is two small patches rather than a trench.
Who owns which part of the water service?
In most Rockland systems the utility owns from the main in the street to the curb stop, and the homeowner owns from the curb stop to the house. Confirm with your own water supplier before any work, because district rules differ.