Home Water Clinic is a practical, plain-English guide to the water systems in American homes: tank and tankless water heaters, heat pump water heaters, water softeners, whole-house and under-sink filters, and water pressure problems.
Most of our readers arrive with a specific problem — no hot water, a blinking error code, a softener that stopped regenerating, low pressure at one faucet. Our job is to help you figure out what is going on, what you can safely check yourself, what a repair or replacement typically costs, and when it is time to call a pro.
What we cover
- Troubleshooting — step-by-step diagnosis for common symptoms, starting with the simplest and safest checks.
- Error codes — what the codes on major water heater and softener brands mean and what to do about each one.
- Maintenance — flushing, anode rods, descaling, resin and filter changes, and seasonal checklists.
- Cost & lifespan — realistic price ranges and how long equipment usually lasts, so you can decide between repair and replacement.
- Water softeners, filters & hard water — how treatment systems work and how to keep them working.
How we write our guides
We base our guides on manufacturer manuals and installation instructions, published product specifications, building and plumbing code references, and utility and government resources. We update articles when manufacturers change their products or when we find a clearer way to explain something.
We are not a plumbing company and we do not sell repairs. Our guides are general information, not a substitute for an in-person inspection. Anything involving gas lines, venting, electrical wiring, or permits should be handled by a licensed professional — see our disclaimer.
Corrections and suggestions
Spotted an error, or have a problem we have not covered? Please contact us. We read every message.