Know What Matters Before You Buy

Plain-English buying advice for homeowners and DIYers who want to understand the numbers, avoid the usual traps, and buy the right tool for the job.

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Understand PSI, GPM, nozzles, surface cleaners, and electric-versus-gas tradeoffs.

Compare CFM, water lift, tank size, hose size, filters, and dust-control needs.

Learn what scanners detect, what they miss, and how to verify support before mounting.

Choose the right gauge, length, jacket rating, and capacity for the load.

Make sense of battery platforms, voltage labels, amp-hours, runtime, and tool fit.

Compare wattage, fuel choices, generator types, home-backup connections, and essential-load plans.

Types, detection depth, and the limits that matter on a real wall.

Why airflow and sealed suction tell you more than the headline number.

A practical match between cord size, run length, and what you are powering.

Check whether a surface-cleaner size is a reasonable match for your pressure washer’s PSI and GPM.

Choose 16, 14, or 12 AWG based on load and distance.

What changes when the wall is not ordinary drywall.

Where a basic wet/dry vacuum stops being the right tool.

Why the two labels often describe the same battery class.

Know what each number measures—and what it does not.

See what you gain, what you give up, and what fits the job.

Skip the hype and pay for useful capability, not bragging rights.