A fishy smell in the water usually comes from organic matter or bacteria, not fish. The odor is a clue that points to the source and the fix.
The organics
Organic matter in the supply or the tank can create a fishy odor as it breaks down. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, the smell follows the warmer months.
The bacteria
Certain bacteria in pipes or the water heater produce a fishy compound. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, the smell is often strongest on the hot side.
The heater
A neglected water heater can grow the bacteria behind the odor. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, flushing and sanitizing the tank helps.
The drains
The smell may be the drain rather than the water, so check the sink first. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, the drain trap is the simpler suspect.
The test
Testing the cold and hot water separately narrows the source. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, a pro can sample both.
The fix
Sanitizing the heater and treating the water removes the odor source. mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines In Calexico, a pro can handle the treatment.
The call
Get the fishy smell out. Call 888-217-3585 and Calexico Plumbing Experts will match you with a Calexico pro who tests.
Before you start
For Calexico homeowners, first identify whether the symptom is isolated to one fixture or appears across the home. Note when it happens, what fixtures were running, and whether the main shutoff is accessible. Photos and model numbers help a professional make a faster, more accurate recommendation.
A simple decision checklist
Before approving work in Imperial County, ask what caused the problem, which repair options were considered, what access or permit work is included, and how the finished work will be tested. Confirm the scope, materials, cleanup, warranty, and price in writing.
When to stop DIY work
Stop troubleshooting if water is near electricity, sewage is entering the home, a gas appliance is involved, a pipe may be frozen inside a wall, or the repair requires opening a structural surface. Shut off water when safe and call a qualified professional.
Plumbing in Calexico: what to know
In Calexico, mineral-rich water varies by region, and older neighborhoods still run on aging galvanized or copper lines. Pros in our network know the local quirks and bring the right parts on the first visit.
Across Imperial County — from El Centro, Holtville and Imperial to ZIP codes like 92249, 92231, 92243 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.
Need a hand in Calexico?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Calexico Plumbing Experts will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Calexico.