I agree 100% with @Donldson, ditch the ozone and use the savings to upgrade something on the pool.
One way to think about it is like this - ozone is primarily an oxidizer but not a very good disinfectant. It has very low residual concentration in water, i.e., it doesn't stay dissolved in water for long. Chlorine is both a powerful oxidizer AND a powerful disinfectant and you can easily maintain a chlorine residual in water. Outdoor residential pools typically have very low bather loads and very low bather waste. The UV from sunlight coupled with chlorine is more than effective at clearing bather waste by oxidation. So, since Ozone will primarily help with oxidizing bather waste and bather waste is such a minor component of the "bad stuff" in pool water, you are basically throwing lots of money (system installation cost + usage costs) at a very minor problem for outdoor pools.
Now, if you have an attached spa with the pool, an ozone system could help there with oxidizing bather waste since spas are generally much lower volume, much higher temperature and therefore have very high bather loads. So, if you planned on using an attached spa A LOT, then having an ozone system dedicated to the spa side of the pool might make some sense.
Hope that helps. And, before I forget,
Welcome to TFP
Please do consider using the TFPC method, you'll be amazed at how easy your pool care will be if you stick to the principles taught here.