Is my hot tub leaking and how can I fix it?

To check if your hot tub is leaking, fill it with water and mark the water level. Leave it for a few hours and check if the water level has dropped. If it has, your hot tub is likely leaking. To fix it, first locate the source of the leak, which could be a cracked shell, damaged Plumbing, or a faulty seal. Depending on the cause, you may need to repair the leak with a patch kit, replace a part, or seek professional help.