Repair or repipe: the pattern matters
Every plumbing system eventually has a leak somewhere. A single failed fitting under a sink, or a pinhole in one copper line, can be fixed and forgotten. The question a repipe answers is different: is the pipe throughout the house reaching the end of its useful life, so that fixing one spot just moves the next failure somewhere else?
In Fullerton, the homes that reach that point are usually the ones built from the 1950s into the 1970s. Many still have galvanized steel supply lines, or early copper that has carried hard water for decades. The symptoms below are the ones homeowners notice first. Taken one at a time they can have other causes; taken together they usually point at the pipes.
Symptoms worth writing down
Note where and when each one happens. A plumber can do more with a specific log than with a general complaint.
- Brown, orange or yellow water when a tap is first opened, especially after the house has been empty.
- Pressure that has faded slowly at several fixtures over months or years.
- Hot water that drops to a trickle when someone else runs a tap or flushes.
- Two or more pinhole leaks in copper lines in different parts of the house.
- Gray, threaded pipe visible at the water heater, under sinks or at outside hose bibs.
- Green or white crust around copper joints and valves.
- A meter that keeps moving with every fixture turned off.
What each symptom usually suggests
| Symptom | Often caused by | Could also be |
|---|---|---|
| Rusty water at every tap | Galvanized supply pipe corroding inside | A water heater tank rusting, or work on city mains nearby |
| Rusty water on hot side only | The water heater tank | Galvanized nipples at the heater |
| Low pressure everywhere | Narrowed galvanized pipe, a failing pressure regulator or a partly closed main valve | A leak drawing water away |
| Low pressure at one fixture | A clogged aerator, cartridge or shutoff valve | A corroded branch line to that fixture |
| Repeat pinhole leaks | Copper wearing thin after long service | High pressure or poor original installation |
A rough way to sort your situation
This is not a diagnosis. It is a way to decide how urgently to get a licensed plumber to look.
- IfOne leak, the rest of the pipe looks sound and the water is clearA spot repair is usually reasonable. Ask the plumber what the removed section looked like inside.
- IfGalvanized pipe is still in the house and pressure keeps droppingAsk for a whole-house assessment. Galvanized does not recover once it has narrowed inside.
- IfA second or third copper leak within a few yearsAsk whether the leaks share a cause and whether a partial or full repipe would end the pattern.
- IfA leak under a slab floorAsk about rerouting lines overhead rather than repeatedly opening the slab.
What to ask the plumber who inspects
- What is my supply pipe made of, and how much of each material is in the house?
- Did you see the inside of any removed pipe, and what did it look like?
- What is my water pressure at the house, and is there a working pressure regulator?
- Would a partial repipe solve this, or would the rest likely fail soon after?
- What is your CSLB license number so I can check it at cslb.ca.gov?
Common questions
Is discolored water always a pipe problem?
No. A rusting water heater tank, sediment, or work on the city's water mains can also cause it. If only the hot side is discolored, the heater is a likely suspect. If both sides are, pipes become more likely.
Can I just replace the worst sections?
Sometimes. If the rest of the pipe is sound, a partial repipe can make sense. If the pipe is the same age and material throughout, the untouched sections often follow.
Does a house have to be a certain age to need a repipe?
No. Age is a clue, not a rule. Material, water quality, pressure and installation quality all affect how long supply pipe lasts.
General information for Fullerton, not a quote or professional advice. In an emergency, call 911.