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Spa Safety Tips: Hot Tub Wiring

If you are thinking of installing your own home spa it’s a good idea to leave the hot tub wiring to a licensed electrician qualified in hooking up the hot tub according to the spa wiring diagram. The hot tub installation must be done in accordance with applicable local electrical codes and the National Electrical Code. We all know that water and electricity don’t mix and it’s important to protect your family and friends from shock and possibly electrocution.

Most portable hot tubs don’t require any special wiring as the hot tub heater, motor and pump is an integral part of the spa. If this is the case, just follow the instructions and diagrams showing you how to hook up your spa. Plugging the unit into a dedicated 110V or 220V electrical outlet is all that is needed. Make sure that the hot tub is plugged into an outlet with a ground fault circuit interrupter (GFCI) for the best possible protection against electrocution.

In-ground home spas or hot tubs can be located at quite a distance from the service panel. You will probably need to route the wiring from the spa to a nearby disconnect box with a GFCI breaker before running the wires through a conduit to the service panel. Get this job done by a licensed contractor and follow the diagram that comes with your new spa to hook everything up according to the electrical code.

As a general safety precaution, let everyone know where the electrical switches and circuit beakers are located. Always keep electrical cords and wires at least 5 feet away from your in-ground or portable home spa or hot tub. If you own a pool, it’s a good idea to post an emergency plan or diagram showing what to do in case of shock or electrocution. Let everyone in your family know where emergency equipment is stored. Pool owners should learn CPR and proper rescue breathing procedures.


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