salt all the way
ozone only kills while water is going thru the ozonator and does not leave any residuals in the water so u will still need to use chlorine as a back up.

An ozone system does need a chlorinator with it, but you don't need as much chlorine. If you want the same silky feel to the water without eye, skin and hair irritiation as a salt system, this is an alternative to salt. Salt is good, but has some issues you need to be prepared for

IMHO, clorine into the pool, ozone into the spa. The best of the best.

anyone else?

Ozone is the best of all, period.

The problem is that a residential grade ozonator will not generate enough even if ran 24/7. Because of this you must have a SWG or an erosion chlorinator in addition to the ozone generator.

To make enough ozone to keep a complete swimming pool sanitized with ozone alone will take a very expensive commercial application ozonator.
An alternative is keeping a little sodium bromide in your pool water chemistry. Ozone injected into pool water with sodium bromide creates an incredible sanitizer called Hyposomething acid, It's like 1000 times better and 5000 times faster than chlorine. This Hyposomething acid when attacking organic wastes converts back into sodium bromide.
But to much sodium bromide will change your pool to a bromine pool.
This is why I don't suggest it for a homeowner with no pool water chemistry.
You need to be very accurate on your chemistry and use hydrogen peroxide for shocking the pool.

See ya,
Kelly

It created bromates, which I will let you read about.

http://en.wikipedia.org/wiki/Bromate

"Human health issues

Bromate in drinking water is undesirable because it is a suspected human carcinogen.[1][2] The presence of it in Coca Cola's Dasani forced a recall of that product in the UK.[3] Proposals to reduce bromate formation include switching to enclosed atmospheric tank contact systems, lowering the water pH to between 5.9 - 6.3, and limiting the doses of ozone."

WOW, I've never heard of that.

I remember researching alternative sanitization systems for my new pool back in 2003.
I'd always been a BBB guy on my pools but was looking for something a little more hands off for my new one.
Although I didn't go the ozone/sodium bromide direction I've always considered doing it.
Now I'll need to go back and research it again.
I, most definitely, don't want anybody to think I'd pass out bad info on any aspect of pool construction or maintenance.

See ya,
Kelly

Well I didn't have any luck finding the web pages I found back then about the interaction of ozone and sodium bromide as the primary form of sanitization.

Here's a copy/paste of what I did find

"""Protocol for total pool management is as follows.

1. Use of ozone as the primary disinfectant.

2. Use of sodium bromide as the secondary stable disinfectant. This is the natural constituent to sea water which can not act on its own. Needs the ozone to activate it.

3. Use of hydrogen peroxide for super oxidizing the pool.

4. Use of an algaecide if necessary.

In an ozone treated pool, ozone activates sodium bromide to hypobromous acid.

Ozone (O3) +Sodium Bromide equals Hypobromous Acid.

Hypobromous acid is one powerful bactericide and is more powerful species than chlorine and more stable than Ozone.

Hypobromous Acid +Organics equals Sodium bromide.

Cycle is set up with the ozonation system in which the sodium bromide goes from the bromide to the hypobromous acid and then back to the bromide. In this way the bromide losses are minimized and one only has to add sodium bromide once each 6 month period to compensate for losses from backwashing"""

What I liked about this set up was that it was a very hands off system which really delivered a very strong disinfectant, Because I have a very very large pool what I didn't like about the system was that there was no residual and I would have to circulate 24/7/365.
I run 3 equipment sets and thought about dedicating one for the ozonator to handle it and let the other 2 run on normal daily cycles. I also didn't like the price of the commercial grade ozonator.
I really didn't want a salt system because I have an Arizona flagstone which doesn't like salt systems and I didn't like the price of the 3 SWG's it would of taken to handle my pool size.
So, I ended up with no system at all.
Kind of stupid on my part, LOL!!!
I use the BBB method, it's a daily regimen of adding bleach every morning and checking the balance of my chem's once weekly.
I keep crystal clear water but can't miss a day of chlorinating because I run a low stabilizer PPM and my pool will grow algae almost instantly if I miss doing it.

See ya,
Kelly

Why not just get a peristaltic pump and put it on a timer.

Thanks for the input.

Thanks for the input.

quote" Why not just get a peristaltic pump and put it on a timer. "quote

LMAO!!! at myself.

I actually have a 6 year old brand new cl/ph controller and 2 peristalic pumps at the shop. They were comp'd to me by an equipment Mfg shortly after I built the pool. I was going to install them on one of my sets but never did move forward on the installation. I've been accustomed to adding bleach daily for decades and figured I'd someday construct a little shed for a large plastic holding tank and a drum of acid, I just never built it.

Gina,
I'm sorry I didn't mean to drift off topic.
An ozone generator is an awesome secondary addition to any pools disinfection system.

See ya.
Kelly