SP-5G, 5g/hr. Swimming Pool Water Ozone Generator, Cleaner, and Purifier Restores Clear, Chlorine-Free Water, Keep Water Crystal Clear,15,000 gallons Water Capacity

This unit has been churning out O3 for about two months now, 24/7, and is still going strong operating in humid NE air. (Keeping the air dry at the unit's intake air flow rate is a work in progress at this writing.) It has an important feature applicable to avoiding pool pump drain-down when the pool circulation is off -- there is an inlet line fitting that may be connected to a refrigeration valve to shut off the air feed to the unit. This avoids having the valve in the unit's O3 output line to the injection venturi where even a stainless-steel valve may be degraded (lubricant or elastomer wise) by the O3. This unit puts out enough O3 that any use of brass fittings in the O3 path will lead to brass failure within a few days.

Well constructed and wired inside. Replace a older cornoa discharge unit I had that was manufactured by hand in what looked to by a hobby box. The old one would corrode all of its internal wiring each season, and had questionable effectiveness when it got hot outside. I was already convinced on the idea that the UV ozone generators, like most of the Delzone units, produced very little ozone, and seemed way overpriced/gimmick. While I appreciate that this unit is fan cooled, and likely much more effective than the old one I had, it designed to be installed indoors, or at least in a weatherproof cabinet. Originally I was going to install it in my basement, opposite of the wall where my equipment resides, but that would have put it bellow-water level and risked it getting damaged by backflow. The fan is also louder than I cared for. I ended up purchasing a cabinet from L-COM, NB181608-03V, which was a 18x16x8 vented, weatherpoof NEMA 3r enclosure and just mouting the A2Z ozone generator in it outside. I use some extra insulator foam board I had (house wrap) and some thick self adhesive weather stripping to separate the top/bottom of the cabinet so the fan in the ozone generator would draw air though one vent and out the other. The cabinet was another $200 though, so that upped my investment in this more than I would have liked. I would be much happier if the cabinet was weatherproof by design, as it doesn't seem like there is any reason why the whole thing couldn't have been manufactured in a L-COM style cabinet. I've had a few near-90 degree days, high humidity, and the cabinet isn't getting very hot inside, but I don't have a thermometer installed. This unit did not come with a venturi injector or mixing chamber, but I already had that stuff built into my plumbing. I also ended up buying a silica dryer from a2z to pre-dry the input air. I would have purchased it during my original plan anyway had I expected to install it outdoors (very humid summers here) I've had it installed for about a month now, and its definitely evened out the pool chemistry, clarity and brought my chlorine use down to a minimum. I keep the water around 86, run the pump 12hr/day over 3 separate schedules, @25,000 gallons. Manufacture would call for the 8g, but its covered with a tarp-style automatic cover when not in use (no sunlight or debre) - so demand is reduced. Add 1/1.5 gallons of bleach every 7-10 days (the big 3 packs of Clorox, unscented works well), and chlorine levels will stay in the .5-2 PPM range weekly. (Bleach is no different than a reduced-concentration liquid shock from the pool store) Regardless, not having to worry about my unattended pool either turning green or reaching crazy cholorine levels (due to the cover decreasing demand so much), I'd buy it all again. Even after the extra parts, its still cheaper than the delzone units the pool store would sell me that produce a trivial amount ozone.

I bought this to replace an Eclypse unit that had run its course. Easy install as most o the hardware, Venturi etc, was already there. Works great.

Product works and looks very good.

I'm a huge fan of ozone. We use it for air purification, drinking water, and other things. There are even medicinal uses for ozone (intravenous, etc). And I've been in some high end pools that use ozone and require almost no other chemicals. I'm a firm believer. Ozone as a cleaning agent has been said to be 55x more powerful than chlorine, and unlike chlorine is actually good for your skin. For now I'm going with an ionizer instead. The ozone setup and maintenance are quite a bit more involved than expected (this is not a ready-to-go unit). I went with a Sunshine ionizer, which is about the same base price as an ozone generator but much simpler. The ionizer can be installed in about 15 minutes with no other parts, and plugs right into my 1.5-inch plumbing. I don't think the ionizer is quite as effective as ozone, but it still reduces chlorine use by 90%, and has minimal ongoing maintenance (mainly, to replace the element every 3 years). However, I powered up the ozone, ran it for a few minutes, checked the components inside and out. I love it actually. I may install the ozone next year if I can figure it out. But I have many concerns. First, I don't see a UL listing anywhere. I don't even see the electrical requirements. The manual says 95 watts, but that's all I could find. They don't really provide detailed installation instructions, probably because each situation requires customization. There is no diagram provided. They say professional installation is required. This is definitely not intended for a DIY installation, or for a standard pool installer. This really must be handled by someone who understands ozone. I believe you need a special ozone resistant pump for this. They don't specify. So it would be difficult to retrofit this into a system, like I'm trying to do. This needs to be mounted above water level. This is easy for an inground pool, but might be a challenge for above ground pools, hot tubs, etc. Minimally, you will need a few hundred dollars of extra parts, including plumbing manifold, Venturi vacuum, and degassifier & ozone destruction system. You also have to figure out your air source (if installing indoors, you need to pull from an oxygen tank or outdoor air source). It may also require an oxygen concentrator and filter for the oxygen supply line - again, it does not specify. The air intake needs to be a certain PSI or its not going to push the ozone into the water. Also, dealing with the exhaust can be a little tricky. The exhaust can be toxic. It's not waterproof, so using with an outdoor pool/outdoor filter can be tricky. Also, the ozone will rust any nearby metal. So if I place it on or near my deck, with the rest of the pool equipment, it could damage the pump or rust out my deck screws. Sometimes it rusts its own parts. The tubing also gets broken down by the ozone and will need to be replaced periodically. The filter and air intake must be cleaned frequently as well.

For those without an understanding of how these things work, Ozone (O^3) is created by this device by breaking apart diatomic oxygen (O^2) into molecular oxygen (O^1) which is then reattached to another oxygen molecule (O^2) to form Ozone. Ozone sanitation in pools is far more common in Europe than in the US, but ozone is far more effective as a sanitizer with fewer chemical inputs than a chlorine-based sanitizer. Additional plumbing and electrical supplies are needed to complete the installation, and I suggest professional installation unless you are merely replacing ozone units where the power supply, venturi injection manifold, and oxygen generator are already in place. Calculate your ozone needs so you know how much ozone you'll need for your operation. You will also need some chlorine tabs as a backup, along with a pool shock here and there. Overall operation with the use of an oxygen generator has been good, and while it does cost quite a lot to get everything set up to use Ozone, there are few costs after the installation has been completed, which is where the cost savings kicks in. Recommended.

So I have an 18 ft above ground pool that came with an ionizer and thought that this ozone generator would be an upgrade to the system. Well I didn't realize that you need more equipment to actually use this and I am now waiting on the pool installer to come back and let me know what else I will need to get this up and running. I will update you when we have it functional.

I ordered this so naively. I have a small backyard pool, and I thought this would allow me to reduce the chemicals that I use to keep it clean. When it got here, I realized that I'd made several mistakes. One is that I didn't check the capacity. This ozonator is for a MUCH larger pool than my little one, and because of that it was MUCH larger than I expected. I was pretty intimidated, but I opened it anyway and was immediately lost about what to do next. I realized too late that this is something for a professional to install. Other reviewers are saying that you also need additional plumbing and parts that aren't included, so again, for a clueless person like me, this would have to be given over to a professional, IF my pool was big enough. My advice for this item is to carefully read the capacity to make sure it's the right fit for your pool.