For home inspection purposes, treat a hot tub as a separate appliance with safety‑first priorities: electrical protection, scald/entrapment risk, structure, and leaks.

Scope and limitations

  • Confirm your SOP and state rules (many treat hot tubs as “optional” or “out of scope” beyond basic operation and visible components).
  • Make clear in your report that you are doing a limited, visual inspection; you are not pressure‑testing plumbing or disassembling equipment packs.

Electrical and bonding

  • Verify the presence of a properly located GFCI device (breaker or receptacle) that trips and resets correctly when tested.
  • Look for obvious electrical safety issues: open junction boxes, loose or exposed conductors, non‑weather‑rated devices, or extension cords feeding the tub.
  • Look for bonding/grounding conductors to metal components (handrails, nearby metal structures) where accessible; note if not visible.
  • Recommend evaluation by a licensed electrician if anything looks improvised, outdated, or damaged.

Location, access, and barriers

  • Check clearances around the tub for safe access and egress; note trip hazards, unstable steps, missing or loose handrails, and slippery surfaces.
  • For in‑ground or deck‑set tubs, look at barrier conditions: fencing, gates, covers, and any local requirements tied to drowning prevention.
  • Report missing child‑resistant locks on covers where they are standard.

Shell, cabinet, and support

  • Inspect the visible shell for cracks, crazing, blisters, staining, and obvious patch repairs that could indicate past leakage.
  • Look at the cabinet and base for rot, rust, insect damage, or settling; note if the tub appears out of level.
  • Where equipment is accessible through a service panel, use a flashlight to look for standing water, corrosion, or previous repair attempts, without dismantling piping.

Plumbing, jets, and leaks

  • If the tub can be safely operated, run pumps on all speeds and cycle jets and features. Note non‑functional jets, noisy pumps, surging, or air in lines.
  • Walk around the tub while it runs and again several minutes after shutdown, looking for active drips or pooling at the base, especially under the equipment bay.
  • If the tub is winterized, covered, empty, or power is off, document these limitations and avoid guessing about hidden leaks or pump/jet performance.

Water quality and sanitation

  • Visually assess water: clarity, color, foam, slime, strong odors, or heavy debris suggest poor maintenance.
  • Ask occupants how they sanitize (chlorine, bromine, salt, etc.) and note the presence/absence of test kits and chemicals; you are not a pool tech, but you can flag obvious neglect.
  • Consider using simple test strips to check basic sanitizer and pH; treat this as advisory only and recommend regular water testing and maintenance by a qualified spa service or owner.

Controls, heating, and accessories

  • Operate the control panel if powered: verify that it responds, modes change, and no error codes are present.
  • Check that the heater appears to function: note current temperature, set a higher setpoint early in the inspection, and re‑check later for a temperature rise (without guaranteeing specific performance).
  • Inspect lights, blower, and any water features that will operate without exposing you to shock or damage risk; document anything inoperative.

Cover and safety features

  • Inspect cover condition: tears, waterlogging (heavy and sagging), broken straps/locks, mildew, or delamination.
  • Confirm that the cover fits reasonably well and can be secured to resist children and debris; recommend replacement when heavy, damaged, or not lockable.
  • Note absence of signage or basic safety warnings where ordinarily supplied by the manufacturer.