I've been using it for multiple months, and I have only good feedback on it. My skin became really different after switching to Spa Marvel Water. One other thing that I noticed, is absence of the bromine sense. I track closely all the chemicals spent in my SPA. And I know for sure that I dissolve the usual amount of bromine tablets in the SPA. However, with this product, the bromine scent (which is usually very distinctive) cannot be detected. I have no idea how exactly it works, but I'm sure that my water have enough disinfectant.The product says, you need to change water every 3 months. It's a best estimation, not a hard milestone. The conditioner feature of this product SEEMS to degrade faster when you use high temperatures and water streams. So, based on your usage, you may need to change the water more frequently. We use our SPA about 2-3 times per a week, and 3 month timeline seems to be a good target. When I started to sense the bromine smell, it was about 3 months since the water change. So, I just changed the water with no doubts.One IMPORTANT thing about using the product. It was a thing that nearly stopped me from using it. The product content by itself HAS NOT CLEAR COLOR. It is white-cloudy. When you pour it into your SAP, the fresh crystal-clear water in the SPA will become CLOUDY. It may, or may NOT resolve. Checkout my experience below.On the first try, I ordered this product directly from the manufacturer, but the season has ended. So, I dumped all the water from the SPA and waited for about 6 months before starting using the product. When the time was right, I filled the SPA with the freshwater and added the product into it. Immediately, I've realized, that there was a solid residual in the bottle. Not only the content was claudy, there were solid particles in it! I hoped my filters will take care of it. And they did to some extent. The water was soft and good, but the water stayed to be slightly cloudy. Nothing could have fixed it until the full water change.On the next try, I learned my mistakes. I ordered the product from Amazon and used it right away. First, I poured the content into a clear glass to examine the state. Indeed, it was cloudy, but there were no solid residue. Good! Then, I was taking small amounts of the product and mixing them with a lot of water from the SPA (an intensive shaking of a bottle gives you a perfect mix). This is how I added all the content into the SPA in a "premixed" state. And I got the situation that you can see on the first two attached images. Yes, they look very weird. Not many people would want such a result. But the filtering process and water heating did its job: within 5 hours the water became clear (the last image). Now, I again have a soft water with no bromine smell. And this time it's crystal-clear.Keep in mind, that all SPAs are different. For instance, my SPA cannot filter the scum on the water surface. It's a design flaw (I knew what I was buying, nobody to blame). Thus, it takes more time to take care of anything that is floating on the surface. There are better models that can efficiently deal with the surface scum, they may cleanup the water much faster.

I was so hesitant to purchase this because of the price. But after reading all of the great reviews, I went for it. It had been a constant struggle keeping the chemicals in our spa balanced. We use ours a lot and have hard water. Since using this product, the water is consistently balanced! It’s amazing! I will definitely be ordering more. Yes, it’s a hefty price but it’s definitely worth it!

Drain your tub, clean filters, clean tub, fill tub pour bottle in and then test your alkalinity. I hated sitting in a highly chlorinated tub because my skin would be a little burny and tight afterwards and we always had to scrub to get it off. I also have experienced horrible hot tub rash (foliculitus) from other peoples hot tubs and are terrified if I don't smell chlorine before I get in. We even have resorted to taking test strips on vacations to test the water before we get in. Anyways, we were getting ready to drain the tub and clean it and i found this product on Amazon. Yeah it's expensive however, we did exactly what the woman in California who works for Spa Marvel said to do and BAM no tight skin, no scrubbing off chlorine on our skin. We have wonderful, soft, clean, no hot tub rash water!!!! We soak every night for 25 minutes except when it's below 20. We are in Iowa and this stuff is the bomb!!!! Bad reviews means you did not follow the exact directions. We have 2 sets of filters one in and one cleaned and dry and rotate on a 2 week basis. Yep Spa Master you rock!!!!! Get this!!! Call the lady!!! Get soft, fab soaks without even having to shower after. We don't share our hot tub...Not enough room haha.

I typically don’t write reviews, but I feel the need to share this with others who are going through the same thing I did. I bought an Intex inflatable hot tub several years back to see if I would use it enough to justify buying a real hot tub. I absolutely loved it, so I decided to buy a hot tub for my home. I used the new one and enjoyed it for about a year, then out of know where I began to develop hot tub rash, which became so miserable I was began to question my decision on buying it. Every time I got in my hot tub I would get a rash all over the back of my arms, my stomach, thighs and shoulder blades. The itching became unbearable!!!! I tried EVERTHING, from flushes, to changing the water twice a month, switching to bromine etc……. You name I’ve tried it!!!! I decided to give it one last try before selling my beloved hot tub. I saw a video about Spa Marvel and was hesitant, given my bad experiences……… I have been using it for about 2 months now and have seen a drastic difference. It doesn’t take take a lot of maintenance, or tons of chemicals to sustain the balance. Keep in mind….. you do have to stay on top of the PH and alkaline levels, but all I’ve done is added granulated chlorine to sanitize the spa……. It really does work as advertised. It’s not a miracle worker in the sense that you put Spa Marvel in and walk away expecting your hot tub to be maintenance free for 3 months. It has eliminated the need for adding shock to my hot tub and I don’t get rashes the way I did before Spa Marvel. I hope this helps someone who is battling he same issues I had. Keep in mind, I’m still learning everyday about my tub, but I certainly do recommend this product. I will give another update in a few months.

This removes all of your used up chlorine without the need for shock. Less chemicals in the tub and makes your water last a lot longer.

We have a smaller inflatable hottub that holds about 175 gallons so we only add about half 1/3 of the bottle every 6 weeks. Keeps the water very clean and clear without needing to add a lot of chlorine.

I've used this product twice now and it continues to improve our hot tub water. It's pricey but I'll be purchasing it to add each time we empty, clean and refill the tub

Love it!! Smells awesome, no itchy skin or rashes. We've been using spa Marvel for over a yr now and we love it!!!

What Fantastic Service from John.Helped me with the problem I was having with my Spa chemicals. Now fully sorted.I wish everyone I dealt with was so knowledgeable and happy to help.Great Service too!!I can't recommend them highly enough..

Ive just received this and the listed filter cleaner was not included. Very disappointed.

This stuff is an easy, one time use with each refill. We used Aqua Finesse for the first 12mths after buying our hot tub and after switching to Spa Marvel, balancing has been much easier, color has been easy to maintain at a nice shade of blue, all with less chemicals.

I am “marvelled” with the product. So easy to use and keeps my spa so very clean and clear. The last order I was a bit disappointed as the package arrived damaged. Must have been mishandled and leaked as when I compared it to another full bottle I had and it did not weigh the same and the inside liner was wet and damaged. Hence the 4 star.