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Tips & local guides
2026-08-31
Cast Iron Drain Stacks in Merrimack Valley Three Deckers and How to Tell When One Is Failing
Cast iron drain stacks in three deckers rarely fail all at once. They thin from the inside, weep at the hub joints, and rot out at the basement floor line, usually years before anyone notices water on the ceiling below.
2026-08-31
Galvanized Supply Pipe: Why Water Pressure Drops in a 100 Year Old House
Galvanized steel supply pipe rusts closed from the inside over 50 to 70 years. The pressure at the street may be fine while the water reaching a second floor shower has been squeezed through an opening the size of a pencil.
2026-08-31
Lead Service Lines in Older Massachusetts Cities and How Replacement Actually Works
A lead service line is the pipe running from the water main in the street to the meter in your basement. In Massachusetts mill cities, plenty of them are still in the ground, along with lead goosenecks and lead jointed connections that count for inventory purposes.
2026-08-31
Why the Massachusetts Plumbing Code Is Stricter Than Most People Expect
Massachusetts writes its own plumbing code instead of adopting a national model, and it is more restrictive on venting, materials, and who is allowed to do the work. That surprises people who have plumbed a house in another state.
2026-08-31
Who Owns the Sewer Lateral and Who Owns the Water Service Line
Most homeowners assume the city owns anything buried in the street. In practice the property owner owns the sewer lateral and the water service line, often all the way to the connection at the main, and repairs run into thousands before anyone touches the house.
2026-08-31
Orangeburg and Clay Sewer Pipe: What Is Under Older Streets and What Replaces It
Two materials account for most failed sewer laterals under pre 1970 housing: vitrified clay and Orangeburg. They fail in completely different ways, and the repair method depends on which one is in the ground.
2026-08-31
Tree Roots in the Sewer Line: How They Get In and What Actually Stops Them
Roots do not drill through sound sewer pipe. They find a joint that is already leaking, and once inside they grow toward a permanent supply of water and nutrients. That distinction decides which repair actually works.
2026-08-31
Frozen and Burst Pipes in Unheated Basements: Where They Split and Why
A frozen pipe does not burst where the ice is. It bursts where pressure has nowhere to go, and the water does not appear until the ice melts, which is why the discovery is usually hours after the cold snap ended.
2026-08-31
Water Heaters Installed After the 2018 Merrimack Valley Gas Work Are Reaching Replacement Age
Thousands of gas water heaters across Lawrence, Andover and North Andover were replaced or reconnected in the same few months after September 2018. Units installed together tend to fail together, and that window is now inside the normal replacement range.
2026-08-31
Thermal Expansion Tanks: Why a Closed System Needs One and What Happens Without It
Water is not compressible. Once a check valve, backflow preventer or pressure reducing valve is installed at the meter, heated water has nowhere to expand and system pressure spikes every burner cycle. An expansion tank is what absorbs it.
2026-08-31
Sump Pumps, Check Valves and Backwater Valves: What Keeps a Basement Dry
A sump pump handles groundwater. A check valve keeps pumped water from running back down the pipe. A backwater valve is the only one of the three that protects against a surcharged municipal sewer main. They are not interchangeable.
2026-08-31
Shared Stacks in Multifamily Buildings: Why One Unit's Clog Backs Up Into Another
A three decker typically runs three kitchens and three baths into one vertical stack and one sewer lateral. When that stack blocks, the water finds the lowest opening in the building, which is rarely the unit that caused the problem.
2026-08-31
Hydro Jetting or Cabling: Which One a Drain Actually Needs
A cable clears a path through a blockage in minutes. A jetter removes the buildup that caused it. Choosing wrong means either a repeat call in six weeks or a damaged pipe.
2026-08-31
Grease Traps in Restaurant Kitchens: Maintenance Schedules and What Fails First
A grease trap works on retention time, and retention time collapses long before the trap looks full. The 25 percent rule, the parts that fail first, and the schedule that keeps a kitchen out of trouble.
2026-08-31
Backflow Prevention and Cross Connection Testing Requirements in Massachusetts
Massachusetts requires backflow prevention assemblies at cross connections to be tested every year by a certified tester. Which assembly you need depends on the hazard and on whether the risk is backsiphonage or backpressure.