Water level drops noticeably between uses without visible external leaks

Safety first: Disconnect power before inspecting under or around the spa.

• Use cover: Always keep the cover on when not in use to minimize evaporation.
• Check drain valve: Inspect the drain valve and cap for drips. Tighten or replace seals if needed.
• Inspect around base: Look for damp spots under the spa that might indicate a slow leak.
• Mark water level: Mark the waterline and monitor over 24 hours to quantify loss.

If water loss is significant and not due to evaporation, a hidden liner or plumbing leak may exist and should be located and repaired, potentially requiring liner replacement.