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    Natural Chemistry

    1. 4 years ago
      Works well
      Very good product to use with Solar Sun Rings. In these drought conditions I'm saving many gallons of water. Evaporation is about 75% less than without these products. Also $10.00 less per unit than the swim centers.
    2. 4 years ago
      Great Idea
      In our California drought conditions, I am trying out this Coverfree product to reduce evaporation from my pool. In the last 2 weeks or so I think the evaporation rate has dropped by about half. So far so good.
    3. 2 years ago
      Excellent service
      This is a great product. Pool temperature started increasing shortly after use. The containers leaked slightly during delivery. In the Swim replaced both containers without question and I received them the next day!! Awesome!
    1. 9 years ago
      Pool savior
      I have been using Metal Free for several years now and it is an outstanding product, it really helps to keep the copper stain away from our fiberglass in-ground pool. In addition, the price that In the Swim charges is much lower than local pool stores and the product arrived the next day! :)
    2. 8 years ago
      Iron in our water
      Bought the Stain Away and the Metal Free, used it according to the directions and my water is like it should be except for cloudiness. Another reviewer suggests putting in clarifier which I am about to do. Our Kempner Water Supply co-op has lots of iron in the water that they distribute to us, (water looks like brownish urine when new pool water is filled) and when you shock/chlorinate the pool, it immediately turns like brown nasty water, because chlorine oxidizes the iron content. These two ... read more products are a Godsend to all pool owners! I will continue to buy this and continue to dose my pool when topping it off as it suggests to do. No more brown water!!! Yeahhhhhhhhh
    3. 2 years ago
      free
      I bought all 3 products by natural chemistry...they are awesome...my pool is balanced ,crystal clear, refreshing water.I highly recommend this product.
    1. 1 month ago
      best product i ever used in my spa.i've had hot tubs for over 12 years and this works the best ever....
    2. 11 months ago
      amzing quality
      I buy this item all the time its amazing for even commercial pools.
    3. 2 years ago
      As good as ever!!!
      This is probably the third time that I have purchased this product. It continues to be so easy to use and does the job!
    1. 9 years ago
      Name says it all..
      Where do i start? im a HUGE fan of "Natural Chemistry" Pool perfect plus phos free used every week or even every two weeks will do the following Remove phosphates- which starves algae and preventing it from growing. Softens water- you feel like your swimming in a pool of silk..hubba hubba ;) Preserves your vinyl liner- um... thats sweet Natural enzymes break down organic matter so no more greased up filters, gross "bathtub" rings.. and they guarantee their products.. any problems ( which i ... read more doubt u will have) they are right there to help.. Every pool that i close that has a mesh safety cover gets a bottle of the pool magic plus phos free and every spring the pools are CRYSTAL CLEAR.. ive used many chemicals being in the business and these guys are by far the best i have ever used. i cant say enough good things... and my customers are very happy as well...
    2. 1 decade ago
      So Easy to Use
      I've never had to keep the pool going on my own before and after ignoring it for a few days during a heat wave found it a radioactive green! I doubled the amount of PhosFree in the skimmer and added a gallon of shock. Two hours later the pool color was back to normal and almost clear. Now I use PhosFree weekly like I'm supposed to and have had absolutely no problems.
    3. 5 years ago
      Great product for those who are < perfect w/reg ma
      I've used this and the stand-alone PhosFree for the last 2 years. The PoolPerfect is great when used as part of your regular pool maintaince routine. Or even if you miss a regular maintenance period. Keeps the water clear and phosphates at bay even with our pool. It's a 33,000 gal pool that gets sun all day long which is murder on the cholorine levels in the summer. As often happens with life- we occassionally miss a weekly maintenance and as long as I've been using the PoolPerfect my ... read more phosophates and algae are kept in check. For pool opening season we use the stand-alone PhosFree to get the phosphates to zero (one treatment per bottle instructions is all it usually takes). Then use the PoolPerfect to maintain.
    1. 1 year ago
      Incredible product!!
      I bought this a few weeks ago after trying everything else first. 2 days after using this product, not only was the algae completely eliminated but the water is clearer than it has ever been ! Highly recommended !!
    2. 2 months ago
      Fantastic!
      This product is awesome. I have not dealt with algae since I first tried this product, 5 years ago.
    3. 2 years ago
      Algae Problem??? NO PROBLEM!!!
      Been having horrible algae problems for the last two seasons. Tried everything - algaecide, super shock... NOTHING worked. Saw this product, and thought "what the heck...it's worth a shot." OMG ~ so glad I did. Liner is squeaky clean...haven't had that for three seasons! Highly recommend this product. It's been a sanity saver, and we're FINALLY enjoying the pool again.
    1. 9 years ago
      Finally!
      With arthritis, we keep our pool warmer than the average pool. This results in a struggle with algae. Our pool has been either green or cloudy most of the summer- yuk...and we have spent hundreds of dollars on chemicals. This would have been tolerable if it had resulted in clear water. I even replaced fairly new filters, thinking this may be the answer. I saw this product and thought the mechanism of action seemed logical. Well, we now have the clearest water we've had in 7 years! I anticipate a ... read more great decrease in the cost of operating our pool....and it is beautiful now.
    2. 8 years ago
      Great Customer Service
      Similar to another poster, I followed the instructions and it clogged my DE Filter. I tried to bump it (it's not bump capable). I wound up having to completely backwash the product out. HOWEVER, I was still pegging a 1000+ p/bb on Phosphates - so I thought I'd give it another try. I called their customer service department to ask how to proceed. Not only did they offer a solution - they provided some free maintenance product after I bring the phosphates down. It always help to call! I'll try and ... read more do a follow-up post after my next batch. Therefore, if you have problems - definitely call the vendor; they appear to stand strongly behind this product.
    3. 9 years ago
      best product, best deal
      It is now a known fact that algae cannot survive without phosphates, and Phos-Free easily brings your pool's phosphate level to zero. Since using this, I have never had even a hint of algae (and it was a significant fight before then). Plus, the 3 liter bottle from In The Swim costs about the same as what my local store charges for a 2 liter bottle. I usually get 2 bottles (which meets the free shipping level) and I'm good for the season. Not only that but a free test kit is included so you know ... read more it's working. All around, my favorite item from In The Swim.
    1. 2 years ago
      clear cloudy pool
      Got about 1 month. I am satisfied with the product
    2. 2 months ago
      This stuff is great
      We use this in our pool every year. It helps keep the pool in good shape. It does everything as advertised.
    3. 1 decade ago
      I Love This Product!!!
      Pool First Aid and has been a lifesaver for us this year. We opened our pool and it turned a horrible brown color-found out the iron was from an old pool ladder we used to have. We have tried over $200 in products since April '07 trying to clear up the pool. All the readings were perfect but it was so cloudy you couldn't see the bottom. Pool First Aid is phenominal the way it cleared our pool. Four days later, the water is crystal clear and the scum line around the liner has begun to disappear. ... read more We plan on using all their products to maintain, close and open our pool from now on.
    1. 2 months ago
      Works wonders!
      It completely removed all stains, even hard water rust from the liner within 24 hours.
    2. 1 year ago
      Wow, the stain is gone
      I had to put a lot of well water into my pool this year. It left a brown stain on the walls and floor of my vinyl liner. I followed the directions and sprinkled the product into the pool onto the stains with the pump turned off in the evening and the pool chemicals at the levels indicated. I saw immediately there were dots where the product started working on the stain. I went to be hoping that it would at least get some of the stain off. When I went out in the morning the liner was a vibrant ... read more blue and the stain was 99 percent gone. Except for some spots on the walls and in the corners. I am putting metal free in today and will probably repeat the process just to get the very few remaining spots. Very satisfied with this product.
    3. 2 months ago
      Works great!
      Opened our fiberglass pool to metal stains-solid light brown stains everywhere the water was. Could not scrub off so we tried this. Sprinkled it in and the stain disappeared before our eyes. Went trough 2 bottles and had to order a 3rd but worth every penny!
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    In The Swim Knowledge Pool: Natural Chemistry

    In The Swim's Dr. Pool

    Eco Friendly Pools and Natural Chemistry

    From pool openings to pool closings and every wonderful summer day in between, Natural Chemistry products work effectively with chlorine-based chemicals by employing natural occurring enzymes that eliminate oils and organics in your pool water. In The Swim has all of the Natural Chemistry pool clarifiers, pool enzymes, pool stain removers and preventers, phosphate removers, instant pool conditioners, and liquid solar cover - the entire product line!


    Natural Chemistry Enzymes

    Natural Chemistry enzymes have been perfected over 25 years, and today's Smart-Zymesâ„¢ are better than ever. Enzymes are the natural and safe way to break down oils and non-living organics in the pool while preventing stains from metals and organic debris. Enzymes also clean your pool filter, naturally. Natural Chemistry Pool Perfect is the original pool enzyme formula, quickly joined by enzyme/clarifier blends like Pool First Aid, or Pool Magic, and Pool Perfect + PhosFree


    Natural Chemistry Phosphate Removers

    Phosphates can enter a pool from many sources, and when levels exceed 300 ppb, we recommend PhosFree, or a blend such as Pool Perfect + PhosFree, and Pool Magic + PhosFree, to remove phosphates from your pool water. Pool phosphates are a primary food source for algae, and if  your pool opens green each spring, or if you deal with algae blooms every summer, you can test for phosphates, and treat with Natural Chemistry PhosFree, naturally. 


    Natural Chemistry Stain Fighters

    From the very beginning, Natural Chemistry has provided a way to deal with mineral scale and metal staining in pools, naturally. Natural pool chemicals like Metal Free and Scale Free are phosphate-free sequestering agents that will prevent stains by keeping minerals and metals safely dissolved in solution. For all-natural pool stain removal, nothing is closer to nature than Vitamin C, which also happens to be an effective pool stain remover. 100% ascorbic acid, available in Natural Chemistry's Stain Free and Stain Free Extra Strength formulas. 


    Natural Chemistry logo

    Other Natural Chemistry Formulas

    Natural Chemistry Instant Pool Water Conditioner, for pools that want to protect chlorine from the sun, but want to keep cyanuric acid levels low. Contains only 1.5% cyanuric acid, yet will register normal tests for cya, and protect your chlorine just as well. 

    Natural Chemistry COVERfree liquid solar blanket, liquid solar blankets use monolayer technology to trap heat in the pool, and reduce evaporation. An invisible layer of natural polymers forms an invisible shield over the water surface to save heat and water. 

    Natural Chemistry Filter Perfect, a natural enzyme based cleaner for all pool filter types. Removes oils, scales and gunk of all types from filter cartridges, sand filter beds and DE filter grids. Natural filter cleaner is gentle but effective, restoring performance to your filter. 


    And beyond Natural Chemistry pool products helping you feel better in the pool, Natural Chemistry pool products are always bio-degradable and environmentally friendly. They won't replace the need for a chlorine sanitizer, but reduce the amount of solids in the pool, removing organic and oily matter, to reduce your chlorine demand, or keep your pool cleaner and clearer, with less chlorine needed.