Spa Marvel Water Treatment & Conditioner 16 fl oz
$58.99


Price: $58.99
(as of Oct 17, 2025 09:50:05 UTC – Details)
Spa Marvel Water Treatment & Conditioner Application Directions Add one full bottle of Spa Marvel Water Treatment to all tubs up to 500 gallons. Even in smaller tubs, use 1 full bottle as your bather-load per volume of water is usually equal to, if not greater than the larger tubs. (In a brand new spa, add one third of a bottle, the second third in 30 days, and the last third in another 30 days.) Occasionally when the Spa Marvel is added it can be seen as white strands suspended in the water. This is normal and the Spa Marvel will go into solution once it has had a chance to circulate. Balance alkalinity (80-120) and then pH (7.2-8.2) if necessary using traditional spa-water balancing products available from your professional spa retailer. The acceptable range for pH when using Spa Marvel is much broader than when using traditional spa care products, so please take care to read your testing devices properly, keeping in mind that they are calibrated to show the “OK” range when using traditional chemicals, not Spa Marvel. Traditional spa treatment products work best at specific water-hardness levels. Spa Marvel will work at any hardness level, and given the choice Spa Marvel prefers softer water over harder water, but it is not a requirement. If your source water is so soft that it is corrosive and damages your heater and seals, then please adjust the hardness using calcium hardness increaser as per your professional spa store’s guidelines. For best results we strongly recommend adding 1 tablespoon of chlorine or bromine to your spa water on start up and once a week thereafter. For example, if your tub is at a vacation home, add the chlorine weekly, again before you leave and again on your return, even if it is weeks or months before you return to use the spa. This is such a small amount of chlorine that you won’t notice its presence.
Is Discontinued By Manufacturer : No
Product Dimensions : 6 x 3 x 3 inches; 1 Pounds
Item model number : Water Treatment & Conditioner
UPC : 680474126064 627843042143
Manufacturer : Spa Marvel
ASIN : B004HM0PT8
Best Sellers Rank: #9,259 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #29 in Swimming Pool Clarifiers & Enzymes
Customer Reviews: 4.6 4.6 out of 5 stars 1,773 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Improves water quality, clarity, comfort and odor
Enzyme based
This spa water treatment can reduce and eliminate the need for many of the chemicals in traditional spa water treatment.
No more itching or rashes · No more odour · No more scum lines · No more chemical hassles · Gentle to skin, hair and bathing attire · Balances pH and alkalinity · 100% guaranteed! · Conditions water for sensitive skin · Drain spa only once a year · Moisturizes your skin naturally · Water so soft and clean you won’t feel the need to shower after using your spa
One bottle of Spa Marvel lasts for 30 days!
Customers say
Customers find this water treatment effective at keeping hot tub water clean and properly balanced with pH and alkalinity levels, while also making skin soft and solving sensitive skin issues. The product works well without harsh chemicals and has no smell. Opinions about water clarity and value for money are mixed, with some customers reporting crystal clear water while others experience cloudy water, and some find it well worth the price while others consider it too expensive.

Igor V. Zavoychinskiy –
I like this product a lot, but there is a catch with it
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.
Rick –
FINALLY A PRODUCT THAT WORKS!!!!!
I typically donât 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 etcâ¦â¦. You name Iâve 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 experiencesâ¦â¦â¦ I have been using it for about 2 months now and have seen a drastic difference. It doesnât take take a lot of maintenance, or tons of chemicals to sustain the balance. Keep in mindâ¦.. you do have to stay on top of the PH and alkaline levels, but all Iâve done is added granulated chlorine to sanitize the spaâ¦â¦. It really does work as advertised. Itâs 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 donât 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, Iâm still learning everyday about my tub, but I certainly do recommend this product. I will give another update in a few months.
Benjamin Starr –
Cleared up my eczema
I’ve had my new spa for 1 month now, and soak in it almost daily. I have sensitive skin that normally gets rashy when I soak in hot tubs, and I also have a consistent problem with nummular eczema, which creates little round rashes on my waist and upper legs that are unsightly and look like ringworm. Even bathing in my indoor tub with city water will trigger them to erupt, and it’s VERY rare that I go more than a week without an outbreak of them.After reading that some users of Spa Marvel had their eczema resolved after soaking in water treated with the product, I had cautious hopes that my weird eczema might improve.After the initial shock (using Frog @ease shock), I waited 24 hours to add Spa Marvel, and another 24 hours before my first soak. I soaked for 1 hour, and the next morning, I had the most horrific outbreak of eczema around my waist that I’ve ever had. It looked like wasps had stung me all over my waist and legs. I was heartbroken.But I didn’t spend $12k for a hot tub to not use it. I treated the eczema with steroid cream for several days until it moderated, as I consistently do to treat the outbreaks, and I soaked again. And repeatedly soaked every day for a week. 3 weeks after that initial outbreak, my eczema has totally cleared with no new traces of it. I have never gone this long in my life without that kind of break between outbreaks. I attribute the initial horrible outbreak after my first soak to residual high levels of chlorine and bromine in the water after the initial shock, and the fact that my city’s water is high in bromine. Now that the chemical levels are back to background levels using Frog @ease, and the Spa Marvel has had time to do its thing, I am enjoying exactly what others have reported…my eczema is gone! (I know it is specifically related to soaking because I also have them around my armpits, an area that does not get submerged when I soak, and those are still present and being treated with steroid cream.)I can’t believe it.I will update this review after a year of working with the Spa Marvel and Frog @ease products, with my own experience keeping water quality high with minimal chemicals. But for now, the fact that I can soak for an hour every day without looking like a leper has changed my life. I could not be more thrilled with this product.
michaelleslie –
This is just a short term rating so far. First the tub is a Canadian Spa Co. Swift Current portable spa that is inside a insulated spa house in the yard so is covered all the time. Second only my wife and I use it mainly me on the really cold days in Winter we are in Canada. The tub we have has a recirculating filter pump that runs 24/7 is very energy efficient and filters the water continually. I bought extra filters and change them every Sunday. I normally use the spa once a day for 30 minutes and sometimes twice. We use only bathing suits that have not been washed with any kind of detergent just hot water. I was using firstly Chlorine then switched to bromine sanitation but both times bad skin rashes showed up plus the ph and the alkalinity and hardness and sanitizer levels were all over the place. Switched to Spa Marvel 5 weeks ago and only use non chlorine shock every Sunday after filter change and 1 small Bromine puck in floater at the same time. Result , rash gone, beautiful crystal clear water with the ph and other test levels stable with no messing around with other chemicals. The water feels soft on the skin no prickly feeling and there is absolutely no smell. Like I said only 5 weeks in but so far love this product it is working for my situation don’t know how it would work in a party spa situation. I will report in another couple of months in how it is working out but right now I love this product.
Steven Mark –
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..
Amazon Customer –
Ive just received this and the listed filter cleaner was not included. Very disappointed.
Kevin R. Sinn –
Spa Marvel is working great for me. My water feels great, smells great and looks great. All while using very little chlorine. Many reviewers imply that the only thing they are using in their tub is Spa Marvel and their water is great. Howerver, this is NOT the correct way to use it. Spa Marvel is NOT a sanitizer and will not kill bacteria in the tub. It is an enzyme that breaks down the things bacteria feed on, but that’s it. So it must be used with a sanitizer of some sort, be it bromine or chlorine, to kill any bacteria that are in the tub. That said, I maintain my tub with anywhere from 0.5 to 1ppm of dichlor (chlorine) and the water is wonderful with Spa Marvel. This compared to the 3 to 5 ppm of dichlor that is recommended for traditional use. No harsh chemical smells, no itchiness, no feeling like you have to take a shower when you get out of the tub. The pH stays balanced, the TA stays balanced. This stuff is for real, but you must use it along with a sanitizer in order for it to work properly.
Robert Schafer –
Works well and better than a commercial one that I haveðð