Spa Installation

Spa Installation Options
Most spa manufacturers sell their spas Ozone ready from the factory. This means your spa manufacturer has done most of the work for you. When connecting any UltraPure Automatic Water Cleaners under the spa cabinet, form the ¼” Ozone tubing into a high double Hartford loop. This is to help prevent water from reaching the ozonator in the event of check valve failure.
Ozone Ready Spas
Locate the end of the factory installed Ozone ready tubing under the spa cabinet skirt. Insert the ¼” Check Valve into the factory installed tubing coming from the spa. Attach the other end of the check valve to the spa’s Ozone tubing. Attach the remaining end of the ¼” Ozone tubing to the barbed fitting on your UltraPure ozonator.
Spas Not Ozone Ready
There are a number of other ways to inject Ozone into a portable spa which is not Ozone ready from the factory. The most common is by using an Ozone Venturi available for purchase separately. The injector creates a slight vacuum, drawing Ozone gas from the Ozonator, and mixing it with water. Our Venturi’s are versatile and can be plumbed using ¾” or ½” PVC Pipe.
There are three orifice sizes available: 7/32” (small), 17/64” (medium) and 19/64” (large) complete with an arrow to indicate water flow direction.
We have designed an in-house testing facility to gauge flow rates under different conditions. This allows you to choose the best injector for your system. We have found controlling the airflow (using a threaded rod) to be superior to controlling the water flow.
The UltraPure™ Automatic Water Cleaner™ is installed on a spa where it treats the spa water (only) when the circulation system is operating on low speed. The longer your spa circulation system runs on low speed (filtration and heating) cycle the more work the ozonator will do. With heavy use, a longer cycle may be required. It is recommended that you run your spa four to six hours per day on low speed.