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    Natural Chemistry

    1. 10 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. 1 decade ago
      On Well Water, Use Metal Free
      I battle with the water in my pool for 3 weeks before I found Metal Free, the very next day we were in the pool and cooling off. Works best in combination with a water clarifier and balancer (lower the ph). If you shock well water it turns coffee colored, then use the 3 items above and it clears the water and test in the medium range for all strip tests.
    3. 10 years ago
      Did the trick
      This product removed the brown staining on my fiberglass pool steps and other white trim in my pool. Our well water has high concentrations of magnesium and iron, so we are always battling the stains. This saved me having to purchase another stain removing product
    1. 5 years ago
      Great Stuff!!!!
      Best stuff ever, cloudy water or green water it will clear it up with in a few hours or over night. Also added some to the pool right before closing and it kept the water crystle clear all winter long, opened pool in the spring and it was fabulis.
    2. 2 years ago
      Works very well.
      Good product. Works very well in our above ground pool.
    3. 3 years ago
      Great results
      I bought this product and it only take 1 oz to keep my 7500 gallon pool clear and clean.
    1. 10 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. 10 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.
    3. 1 decade ago
      Phos Free is a must to pool owners
      I had a pool build last year. I struggled with yellow algae to the tune of over $1,000.00 in a course of two months. I couldn't use the pool most of the summer. I went to several pool stores to purchase chemicals. I used banish and all sorts of things. I close pool for the winter and started over this year. To my amazement, finally someone told me about Phos Free. I mean in a matter of two days with a 20x40 pool and 16oz of Phos Free my pool is perfert. No more algae. I can't begin to tell you ... read more how fustrated I was. To anyone out there, I promise you; this is the best thing since the microwave.
    1. 1 year ago
      Great Product Does all it Claims to do!!!
      Bought for my daughters pool. She uses it regularly during the summer pool season and simply loves it. It is truly a Great Product for conserving pool chemicals and water temperature.
    2. 5 years ago
      Good product for your swimming pool!
      Good Product!! it's great for my pool and give my pool so hot!
    3. 5 months ago
      It's hotter than a solar blanket....Easy to Use.
      Keeps temperature up, controls loss of heat, so easy to use. No more solar blankets needed!
    1. 3 years ago
      Seaklear 90 day pool algae prevention and remover
      Have used this product for the past several years, the best ever keeps pool spotless of algae, put in half bottle every 3 mths. need little to no other chemicals except tabs and some chlorine.
    2. 3 years ago
      The BEST algaecide ever!
      I started using this product about 5 years ago to get rid of a huge algae bloom. Nothing had worked up until then. The SeaKlear was nothing short of amazing. I use 1/2 a bottle every 3 months along with In the Swim super shock and I have the clearest water all the time.
    3. 2 years ago
      Seems to work
      Due to lots of rain and water temperatures around 95, we were getting heavy algae requiring frequent cleaning and diatomaceous filter changes. After through cleaning and shocking I used the recommended amount of algaecide and after 10 days no algae or filter changes. HOWEVER, the water is no longer crystal clear; it has a yellowish tint.
    1. 6 years ago
      Pool Aid
      I have an above ground 18' ft. round pool. Took off winter cover (NON Mesh) and opened up pool as usual. Water was cloudy and dark. Rebalanced all chemicals and got that right but water remained cloudy even after a couple of days. I have a sand filter so just kept sending a few inches of pool water to WASTE (then backwash, rinse, filter) and then replaced those few inches with FRESH water. Did this every other day. Checked water chemical balance daily -- all good. Would maybe only need to add ... read more more Chlorine shock to assist in killing algae, etc. Water still cloudy a week later. After a week of still not seeing the bottom and not wanting to spend $$$$ on chemicals not needed. I tried POOL AID and you should KEEP your filter running!! Do not shut if off. Next morning, saw the pool bottom!!! Dead stuff dropped down so and I vacuumed off to WASTE cycle and got almost all of it OFF off pool bottom! An amazing, quick working, timesaver product! Who knew? Did a second round of Pool Aid (half of the first round)...just to get it crystal clear....I will see it this this afternoon..and I'm sure the water will now be even more clear! This saved me tons of work and buying useless chemicals. I am impressed and would recommend if you do not want to waste time and money. TRY this first! Then see if it's anything else.
    2. 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.
    3. 1 decade ago
      Best Purchase
      I have been trying for 2 months to clear up our pool. Nothing had worked until I tried this product. Our pool was blue but still cloudy and the more chemical we put in the worse it got until First Aid. I can now see the bottom of my pool!
    1. 2 years ago
      amzing quality
      I buy this item all the time its amazing for even commercial pools.
    2. 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!
    3. 8 months ago
      best product i ever used in my spa.i've had hot tubs for over 12 years and this works the best ever....
    1. 8 years ago
      Excellent!! Great for FL summer rains too!
      This product effectivly removes phosphates from our water, we only had problem in the summer storm season here inFL, so now we use one at the beginning of the storm season and voila! No more shocking needed! We try to keep it up with regular phos free, but this certainly helps when you forget or are gonna be away!
    2. 1 decade ago
      Crystal clear pool on spring opening
      We've been using this product for 3 years (after a horrible experience opening our pool) and we wouldn't close or open our pool without it now. Great product.
    3. 1 decade ago
      Great Product
      This was recommend by our pool installation contractor. We tried the Pool magic and have used it for the last five seasons.
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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.