Learning Center
Plain-English plumbing guidance from a Responsible Master Plumber who has been in the trade since 1988. No scare tactics, no upselling — just what we would tell a neighbor.
If you would rather just ask a person, call us. We would rather talk it through than have you guess.
Serving San Antonio since 1999. Led by William Shilling, whose plumbing career began in 1988 and who has been a licensed Master Plumber since 1993.
Guides & Articles
Water heaters and tankless
- How to Tell If a Water Heater Should Be Repaired or Replaced
Age, leaks, rust, and rising bills — how to tell which side of the line your water heater is on. - What Affects Water Heater Replacement Cost in San Antonio?
What actually drives water heater replacement cost in San Antonio – equipment type, access, venting, and code work – plus how to get a clear estimate. - Tank vs. Tankless Water Heaters: Which Fits Your San Antonio Home?
Tankless or tank? How the two compare on cost, installation, lifespan, and maintenance, and which tends to fit San Antonio homes and hot water demand. - How Often Should You Flush Your Water Heater?
How often to flush a water heater in San Antonio hard water, how tankless descaling differs, and when draining it yourself is not worth the risk.
Hard water and water softeners
- Why San Antonio Has Such Hard Water — and What It Does to Your Pipes and Water Heater
San Antonio water moves through limestone, which makes it hard. What that does to fixtures and water heaters, and what actually helps. - Why San Antonio Hard Water Shortens Equipment Life
Your water heater probably did not fail early. It was worn out early. - What a Water Softener Does — and What It Cannot Do
Hard water is quietly expensive. But a softener is not magic, and we will not pretend otherwise. - Is a Water Softener Worth It in San Antonio?
Hard water is common in San Antonio, but a softener is not always the fix. What softening actually does, when it helps, and when something else is wrong.
Leaks, slab leaks and water lines
- Signs of a Hidden Water Leak
A leak you cannot see is the expensive kind. Here is how to catch one early. - How to Read Your Water Meter to Find a Hidden Leak
Ten minutes, no cost, and the most useful thing you can do before calling a plumber. - Slab Leaks in San Antonio: Warning Signs, Causes, and What to Do
Warm floors, a climbing water bill, or running water you cannot find? The common warning signs of a slab leak in San Antonio homes, and what to do first. - What Affects Slab Leak Repair Cost in San Antonio?
Slab leak repair cost depends on location, access, and repair method. What drives the price in San Antonio, and how to get a practical estimate. - Copper Water-Line Leaks in San Antonio: Pinholes, Corrosion, and Repair Options
Pinhole leaks in copper water lines: what causes them, how the leak is diagnosed, and when a repair, a reroute, or repiping is the right answer. - What Affects Whole-House Water-Supply Repiping Cost in San Antonio?
What affects whole-house water-supply repiping cost in San Antonio: piping scope, installation routes, materials, connections, access and restoration. - High Water Pressure in San Antonio Homes: Signs, Risks, and Fixes
Banging pipes, dripping faucets, and failing supply lines can point to high water pressure. The signs, the risks, and when to have pressure tested.
Sewer lines and drains
- Warning Signs of a Main Sewer Line Problem
Multiple slow drains, gurgling toilets, and yard odors are how a main line tells you it is in trouble. - How Clay Soil Movement Can Affect San Antonio Sewer Lines
Clay soil expands and contracts with the seasons, stressing buried sewer lines. How that leads to cracks, offsets, and bellies, and the signs to watch for. - What a Sewer Camera Inspection Actually Shows You
The difference between knowing and guessing — and the honest limits of both. - What Causes Repeated Drain Stoppages
If the same drain keeps backing up, clearing it again is not the answer. Here is what is usually going on. - Does Your Drain Need Cleaning or Repair? How to Tell
One slow drain is usually a clog. Several at once, or one that keeps returning, points to the line itself. How to tell cleaning from repair. - Drain Cabling vs. Hydro Jetting: Which Does Your Drain Need?
Drain cabling clears a blockage; hydro jetting cleans the pipe wall. Which your drain needs, when jetting is not suitable, and when the line needs repair.
Inspections, safety and choosing a plumber
- What to Do When You Have a Plumbing Emergency
The first five minutes matter. Shut-offs, safety, and what not to do while you wait. - Gas Line Safety Basics for Property Owners
What to do if you smell gas, and what you should never do yourself. - What Happens During a Plumbing Inspection
What gets checked, what gets tested, and what an inspection can and cannot tell you. - Common Plumbing Problems in Older San Antonio Homes
Cast iron, galvanized pipe, clay sewer laterals, and oak roots — the four usual suspects. - Repair or Replace? How We Decide — and How You Should
The most expensive words in plumbing are “it all needs replacing.” Often it does not. - Questions to Ask Before Hiring a Plumber
License, oversight, diagnosis, and written scope. The questions that separate the real from the rest.
Have a Question We Have Not Answered?
Our plumbing FAQ covers the questions we get asked most, organized by service. If yours is not there, call us and ask.
Still Not Sure?
Reading about a plumbing problem only gets you so far. Call Will’s Plumbing & Testing Service and we will tell you what we would actually do.