Conduit Stub Up

Before you pour new concrete, you have the option to run conduit up through the concrete so the wire for your hot tub is not visible.

The stub up location varies by model, so the first step is to choose a spa. However, it’s safe to assume it will be contained somewhere within the equipment area (illustrated below).

How to Stub-Up Hot Tub Electrical

1. Choose a Spa Model: Each spa has a different stub up location in the equipment area so it’s important to first identify your spa model.
2. Choose a Patio Layout: Before you pour concrete or lay electrical wire, choose the orientation of your spa. Consider the layout of the seats, the entry point, and the position of the stairs and cover.
3. Run Conduit: Using the spa’s diagram (below) for reference. Bury appropriate electrical conduit under the future spa pad with the end of the conduit sticking straight up in the specified stub-up location.
   ⚠ It is NOT recommended to pour concrete directly around PVC conduit as the conduit may easily snap at the top concrete before or during installation. This is difficult and expensive to repair. To avoid this, use the irrigation box method outlined below.
   
4. Pour Concrete: After the conduit is ran, it’s time to pour the spa pad!
5. Run Wire And Flexible Conduit: Have an electrician return to install the remaining conduit and wire. It is recommended that a minimum of 5′ of flexible conduit and wire is provided after the conduit stubs above the concrete.
6. Install the Spa: The crew arrives and places the spa on blocks above the wire while they open the stub up port in the base of the spa. After the wire is pushed through, the spa is lowered and the final connection is made in the equipment compartment.

For more information on spa electrical requirements. Visit our Spa Power Requirements article.

Contractor’s Spa Diagrams

Click on the corresponding PDF below to view the specific location of the conduit stub-up. Typically illustrated using a ⨁ or ◯ icon.