A person pouring water from a glass pitcher into a drinking glass beside a kitchen sink

HandyTrail / Home water guides for the USA

Home water testing.
Clearer choices.

Understand signs of a water problem, choose useful tests, and compare filters and softeners for your home. Start with the question you need to answer.

Photo: cottonbro studio / Pexels

A clearer place to start

Understand a problem. Choose a useful test. Find the right treatment.

Fresh from the journal

Clearer water.
Better-informed choices.

All guides

Follow the first clue

What’s happening at your tap?

Choose the issue you’ve noticed.
Find out what to check first.

Inside your water system

A little clarity.
A better flow.

See how water can move from its source
to the places you use it every day.

HOME WATER / FLOW STUDY 01Explore the components ↗
An illustrative household water-flow schematicWater source, testing point, optional particle filtration and softening, branching to household uses and optional drinking-water treatment. Animated markers show direction, not measured water flow. Isolation valve symbol Your water sourcePublic supply or private well Particle filterOnly where needed SoftenerHardness treatment RegenerantModel-specific care Drinking-water filterOptional · claim-specific Around the homeShowers · laundry · fixturesDrinking tapMatch a specific claimTest firstKnow what to addressHOUSEHOLD LINEDRINKING-WATER OPTION An illustrative household water-flow schematicWater source, testing point, optional particle filtration and softening, branching to household uses and optional drinking-water treatment. Animated markers show direction, not measured water flow. Isolation valve symbol Your water sourcePublic supply or private well Particle filterOnly where needed SoftenerHardness treatment RegenerantCare & upkeep Around the homeShowers · laundry · fixturesDrinking tapMatch a specific claimTest firstOptional drinking-watertreatment at this tap
Water path Testing pointIllustrative options · not every home needs treatment

A simplified illustration, not an installation plan. Equipment, order, and treatment needs depend on your test results, local requirements, and the exact system.

A useful little tool

One number.
A clearer picture.

One report uses mg/L. Another uses grains per gallon. Convert the units before comparing the readings.

How to get a useful hardness result

Water hardness converter

120 mg/L ≈ 7.02 gpg

1 gpg is approximately 17.1 mg/L as CaCO₃. This converts units, not water safety or system size. Your input stays in your browser.

Explore the full tool

Fresh from the journal

More clarity. One guide at a time.

Practical home water explanations, useful questions and a clearer next step.

Explore the journal

Less guessing. More clarity.

From the problem to the next step.

Start with your concern.
Choose the next step that answers it.

Our point of view

Your water is personal.
Your research should be practical.

No one-size-fits-all recommendations. Just clear explanations, useful questions, and links to the evidence behind them.

How we create our guides

Explore the details

Every home. Every question.