Because spa dealers are in the business of selling new spas, they are not a likely source for finding a great deal on a second-hand spa. A better option is to keep a watchful eye on the classified section of the local paper, as families sometimes sell their hot tubs when they move.

A currently operational spa would be a candidate for consideration. Avoid units that have been in storage, or show signs of being neglected. A spa left empty or not run for some time is likely to have numerous problems, from dried and shrunken seals and gaskets to corrosion on the electrical components or a rusted pump motor shaft.

A spa stored unheated or empty in sub-freezing temperatures can have cracks and fractures in the plumbing system. Prolonged periods of exposure to direct sunlight can cause irreparable damage to the acrylic layer or even the fiberglass reinforcement.

A tub filled with water and running for at least 24 hours with the temperature set to maximum is all set for an inspection. While the spa is running, confirm each of the jets is functional by adjusting the flow and direction, and check that any jets with ball bearing spinners are not frozen. Beware of a rapid clicking or chattering noise coming from the control system, as this indicates a defective relay contactor. Make certain that a burned-out spa light is just that, and not a problem with the light control circuit, by replacing the bulb before you buy.

A Ground Fault Circuit Interrupter (GFCI) that trips and cuts power to the spa is a sign of electrical malfunction requiring immediate qualified professional attention. Do not even consider a used hot tub with tripping problems.

Check the a> with your own digital oral thermometer. The spa should reach and maintain a temperature of 104° F. The spa's digital readout ought to be a close match to your readings.

Pump leaks and motor replacements are costly repairs. Open the equipment door and check for any indication of water leaking around the pump shaft. Replacing leaking seals may be all that is necessary, but if wear and corrosion is severe, or there is a grinding or whining noise, expect to spring for a new pump.

Damp, badly discolored or white chalky areas in the hot tub shell's underside are also evidence of leaks. Avoid fully-foamed cabinets in used tubs. Pinpointing a leak in one of these spas is nearly impossible without literally tearing it apart. a> can also cost big bucks to heat.

Take note of where the spa has been sitting. Even a good-looking exterior wood skirt surround can fall apart during a move if there is underlying wood rot in the framing members. Spas sitting directly on soil, next to a wall or in a deck tend to rot more quickly, making them attractive to carpenter ants, termites and even rodents.

Don't forget to examine the spa cover. Deteriorated covers will allow heat to leak at the hinge-fold and spa shell rim. A water logged cover is heavy and provides zero R-value. A strong moldy odor means the cover is likely rotten and requires immediate replacement.