Acid Neutralizer Installation — Prince Frederick, MD
A Prince Frederick homeowner had blue-green staining on every fixture and pinhole leaks developing in copper pipes. Water test showed pH of 6.1 — well below the safe range. We installed a calcite acid neutralizer and pH rose to 7.4 within 48 hours.
The Problem
A Prince Frederick homeowner contacted us after noticing blue-green staining on their bathroom fixtures, kitchen sink, and tub. They had also discovered a small pinhole leak in a copper supply line under the kitchen sink. The staining and pinhole leak are classic signs of acidic water attacking copper plumbing. A water test confirmed pH of 6.1 — significantly below the neutral 7.0 threshold. At that pH level, the water was actively dissolving copper from the pipes.
Our Diagnosis
We performed a full water quality test. pH was 6.1, hardness was 4 gpg (moderately soft), and iron was 0.2 ppm. The combination of low pH and soft water is particularly aggressive toward copper plumbing. The pinhole leak was the first sign of accelerating corrosion. Without treatment, additional pinhole leaks and eventual pipe failure were likely within 3–5 years.
The Repair Process
- 1Performed comprehensive water quality test (pH, hardness, iron, TDS, bacteria)
- 2Confirmed pH 6.1 — calcite acid neutralizer appropriate for this pH range
- 3Installed 1.5 cubic foot calcite acid neutralizer at point of entry
- 4Repaired pinhole leak in kitchen supply line
- 5Set neutralizer backwash cycle for weekly regeneration
- 6Retested pH 48 hours after installation — confirmed 7.4
- 7Educated homeowner on annual calcite media top-off schedule
The Outcome
pH raised from 6.1 to 7.4 within 48 hours of installation. Blue-green staining stopped immediately. The homeowner reported that the staining on existing fixtures faded significantly within two weeks. The copper plumbing is now protected from further corrosion.
Key Takeaway
Blue-green staining on fixtures is a diagnostic sign of acidic water attacking copper plumbing. If you see it, get a water test immediately — the staining means your pipes are being dissolved. A calcite acid neutralizer is the correct solution for pH 6.0–6.8 and costs the cost of the repair installed.
Frequently Asked Questions
Related Articles
More Water Treatment Stories
Other real jobs in the same category — with full diagnostic details.
What Southern Maryland Homeowners Are Saying
Real Google reviews from homeowners we've helped across Calvert & Anne Arundel County.
George Baker III
Annapolis, MD
May 2026
"We recently had Deep Dive Plumbing Maryland out to our home in Annapolis after we suddenly started noticing sewer flies throughout the house. They truly lived up to their name and performed a full "deep dive" diagnostic inspection instead of just treating the symptom. During their inspection they discovered our sewer pipe connected to the toilet had been leaking into the basement for quite some time. The team explained everything clearly, provided upfront pricing before starting any work, and even gave us a military discount which was greatly appreciated. They were professional, respectful, extremely knowledgeable, and took the time to make sure the repair was done correctly."
Angelis Reilly
Southern Maryland
June 2026
"TJ was great!! He answered our emergency call late evening hours. He was honest and gave us options to make a decision. Highly recommend!!"
Sally Ludwig
Dunkirk, MD
June 2026
"Great service with knowledgeable and neat professionals. Highly recommend! Deep Dive Plumbing helped with my bathroom project, including reinstalling a pedestal sink after new flooring was installed and addressing a toilet issue that had been causing constant clogs. The team was professional, courteous, and took the time to make sure everything was completed correctly. Their attention to detail and cleanliness really stood out. I am very happy with the results and would not hesitate to call them again."
Facing a Similar Issue?
We diagnose first, then fix. No guesswork, no repeat service calls. Serving Calvert and Anne Arundel County, Maryland.