ControlOMatic MegaChlor Saltwater Chlorine Generator, Chlorinator for Swim Spas and Above Ground Pools Up to 17,000 Gallons

I have had a hot tub for 20 years now. I have tried everything to get away from harsh chemicals. My latest what Hydrogen Peroxide but I was extremely fussy to use. But this ChlorMaker take salt (I use Dead Sea mineral salts) and turns it into a very mild natural form of chlorine. When you first open the lid you get a little whiff of chlorine smell because its trapped but once in the tub you do not smell it any more. Takes a little time to get it adjusted right but after a few months now I still have crystal clear water. No need to shower after. The salt level is very low. Great invention. I add nothing to the tub any more. Update: Its been 5 months now. I still love this thing. Two additional comments. If you are on a well with some minerals or iron in your water the unit will sense the salt is to high so you must run your salt level at a lower than recommended amount. Also I have found for my tub size level 4 is a bit to low and 5 is a bit to high so I run on level four and hit the Boost button every other day when I get out of the tub. We use ours every morning. Well its been 3 years now. I am ordering a new hot tub and will use my ChlorMaker on the new tub. This thing works so well I would never have a tub without it. If you keep good notes the next time you change water you know exactly how much salt to put in. I bought an extra drop in unit and put a plug on both of then so I can keep one soaking in vinegar and when I need to clean the next one I just unplug one and plug in the other so one is always ready and clean. update..if you use different kinds of salt the amount you use will increase or decrease when you change the water. It is best to stick with the same salt so you can learn how many cups you need for a fresh start with new water. someone said it takes a few days to get the level up. Just add a little clorine to the water at start up so the unit does not have to do all of the work. Also if you have the unit set to low and your level drops way down. Turn it up on setting and again give it a litte powder clorine to help it out. I finally wore out my electrode after 5 years and just ordered a new one. I love this unit....

Like so many other smart people, we know that "real" chlorine is not healthy. It was hard to find this product and I didn't see anything better at the time. We bought the "Chlormaker" for our spa in May 2020 and then the Mega Chlor in June 2020. We paid well over $300 for each of them (when tax and shipping were considered). The Mega Chlor is still working in our pool, has been great, and we have not no problems with it (fingers crossed). But, the Chlormaker has been problematic pretty much from the start. What happens is that it will have lights coming on that are signaling that the salt is too low, too high, or just right, but the readings the unit is giving are not correct. For example, if it says the salt is too low and you add just a little, it can jump way up and say that you have too much salt. So, imagine the different combinations of lights you could get, and that's what we saw. We contacted the company by leaving them a voice message and they sent us the new part that goes into the water (only), and not the full unit. That fixed the problem for a while, but now when we plug it in, there are no lights whatsoever, and it is apparently dead. Like many other customers here, this is very disappointing as we have almost $700 invested in these two units and one is completely unusable now. I appreciate that some of the people who write reviews here are putting in the names of products similar to this that do work, and last like they should. If you haven't purchased this yet, don't do it! You will be sorry. You will love it at first, and then be really let down when it crashes!

Chlormaker DO is an terrific product. I bought this direct from the mfgr not on Amazon over a year ago. It has worked flawlessly. I have a vacation home with a hot tub, which is quite hard to keep chlorine levels proper when you are there only on weekends. I found myself traveling a couple of hours just making sure the hot tub had enough chlorine when we cannot come up. With this I have no worries that chlorine levels stay consistent even for weeks at a time!! You just need to monitor the ph levels to make sure they are ok. You will need to play around with the settings to get the right levels, but that is easy. In fact everything is easy, from set up to use. Just make sure you have a dedicated outlet within 10-15 ft. You just need to drill 2 small holes on the side of the tub, to install. The boost feature is nice but only for short soaks in the tub. If you have a lot of people using it. Just add some plain Clorox to amend the ch levels or for shocking. I do not use dichlor one CY levels get to about 40. This is very important as too much CY will require higher levels of ch to keep your tub bacteria free. That is a different story though. Anyway this is a must have. PS. This may void your warranty on the hot tub, so check with your hot tub mfgr. Also, if you winterized like I do, you will need to remove the unit completely.

As a new hot tub owner I was daunted by the chemical requirements and decided to go with a salt water system. Easy to set up, took a couple of days to find the correct setting for the size of my tub, but then it worked like a champ. Only downside is that it takes a day or two (or numerous boosts) to get the chlorine back up after using the tub regularly, hence 4 rather than 5 stars. All in all though it works well and minimizes the effort to keep you tub water clean and safe. UPDATE 03/05/2013: Seems that the unit has stopped working properly. Randomly reporting low salt, high salt and switching off. Can't seem to show or set the power level. Will contact Controlomatic and report back on their customer service. UPDATE 03/07/2013: Received a quick response to my email from Daryl at Controlomatic who are sending out a warranty replacement. 5 stars for support so far. UPDATE 03/12/2013: Replacement unit received today, installed and working fine. Good job Controlomatic!

I have spent hundreds on modifing hot tubs plumbing to install a salt water chlorine generator. Her skin is super sensitive to chlorine pools and water. It tears up her skin. But salt water is very therapeutic for both our skin. We have been doing this for years. It is great for our joints and couple time. I blanched at the $300 price, twice what the small inline systems are. I was replacing those every year and the plumbing was horrible to maintain, usually breaking down in the dead of winter. This one is no plumbing, pop off the head and replace it when the electrode erodes away. Pretty simple. It had high marks in reviews. I have waited two months to write my review to make sure it worked. I installed it on a new Intex blow up hot tub, 209 gallons. There are no parts that freezing temperatures can damage. I doubt the control box is rain proof. It is small, I placed it under the cold weather housing I built for the hot tub controls. We use it all winter. I also put a sand filter in that cleans the water, all three are in the insulated enclosure. At first I had trouble getting my free chlorine up to range. That was because I was getting the salt level adjusted on the fresh batch of water and need to add more salt. Then I played with the generator level control till the chlorine was good. I am using a two out of ten setting currently. This should have no problem up to 1200 gallons. They say to pull the head out of the water during use or you may feel tingling. Neither of us feel any of that and we are both scientists very familiar with electrical systems. They recommend hanging it vertical as close to the bottom as possible. That works well. We do get some white mineral products on the bottom of the tub, I think from the salt being consumed. We clean the floor of the tub with a net to remove this. The water is Chrystal clear. All the parameter except hardness are perfect. It wants me to add some hardness, calcium i think. The worst part is the control. You have to read the instruction manual to decode the adjustments. It would be great if they were printed on the housing. I guess I will do that myself. I am very please with this unit so far. I recommend you buy this device.

We were invited to swim in a friend's salt-water swimming pool. To our amazement the water was slightly salty, didn't smell like a lagoon and we did not itch when we left the pool. On the contrary, our skin felt softer and we did not smell like a chemical plant. Call me naive but I did not know the same could be had in my here-to=for chemical laced hot tub. I did some on-line research and found chlorMaker with good reviews. Three days later we received the product, drained, cleaned and refilled the 320 gallon hot tub with the most difficult part, getting the PH right after adding 2.5 cups of pool salt per 100 gallons. We are on a well and the PH is high as well as alkaline. The instructions were easy to understand and after soaking and enjoying the hot tub, lots of chemicals will no longer be needed. For us, it will be salt, Ph increaser, and decreaser and test strips. There are hot tubs designed for salt water, but they are pricey. Good investment converting our hot tub and should have done it years ago. UPDATE: In a couple of days it will be two years since we started using ChlorMaker and still it remains one of the best purchases we have made on Amazon. Water is crystal clear, practically odorless and if the ph is right, no itching. It is a joy to just relax or soak away aches and pains on an early morning dip.

After having a salt pool for over 10 years we were thrilled to find this addition for my Mom’s hot tub a year ago to make caring for it easier in her. We figured since my Moms has worked over a year, this was the one for us also. Boy was that a bad assumption! When we received the generator we noticed a hair single wrapped around the center piece and my husband assured me it looked new otherwise and it was probably just the person packing it. Wrong again. It worked for a couple days, then read “high salt.” Salt was in range, thought it was just being finicky and drained a little water, added a little fresh…still said high salt. The salt was around 1000 at that point. The inner part started to rust and left a 6” rust spot inside our hot tub. Bought new salt test strips and used my Taylor test kit, both of which showed that the salt was low, not high. Finally decided to drain more water and add more fresh, salt was 500 and then it switched to “low salt.” Added salt to get it back up to the listed range of 1500-2000. Turned it back on at 1000 to check it’s reading and it said it was in range, decided to leave it and the very next day (exactly the same salt reading) it stated “high salt.” It will not produce chlorine or sense the correct salt range no matter what I do. I believe the one we were sent was used and someone quickly realized it didn’t work, sent back and they re sold it to me who has now attempted almost 3 months to get a dysfunctional product it to work, since they will not respond to emails! So much for customer service or a warranty, they won’t respond. I’m now in the process of getting my money back for the faulty product since all emails have been sent through Amazon & there lack of follow through. This would have been a great product had they sent one that actually works.

These are the way to go, but don't think that Quality Control is where it needs to be. I have had some work right out of the box, and I have had some that never read the salt level correctly so they didn't generate chlorine. For a product that costs so much, I would expect better consistency. When they work, they keep the spa (400 gallon) sparkling clean, and my wife likes that we don't have to add extra chlorine. It keeps your skin feeling soft, doesn't fade your swimsuits, and doesn't smell like chemical additives. Now we can get away without even showering after using the spa, which was never an option when we were using chlorine granules.