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    Natural Chemistry

    1. 3 years ago
      Good product
      I've been using CoverFree for a couple of years now. While a don't have data from a side by side comparison, the scientific rationale seems sound and the pool does seem warm. My reason for not giving this five stars has to do with shipping and handling. The box arrived wet, as one of the two bottles leaked. Upon opening it I noticed the cap was loose causing roughly 2/3 of the liquid to leak out into the carton. A quick call rectified the matter and a new one was set out with dispatch. One ... read more suggestion...perhaps you can instruct your pickers/packers to give the cap a quck twist to tighten it beore sealing the shipping carton.
    2. 5 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.
    3. 5 years ago
      It worked!
      I bought this as we have had a cold summer. My 3 year old granddaughters birthday party was to be a pool party here. I put it in and with clouds and mid 80 temps it raised the temp of water 5 degrees in 4 days. All the kids had a blast. So I am sold on this product! Well worth the money!
    1. 3 weeks ago
      SeaKlear 90 Day Pool Algae Prevention and Remover
      This product really works. Well worth the cost. It completely removed all algae and has kepted it clear for two weeks so far
    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
      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 !!
    1. 4 years ago
      Good product
      We have very hard water and Scale Free helps to keep the buildup down on the sides of our pool.
    2. 1 month ago
      Scale Free
      This is a great product. It keeps our pool clear and clean.
    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
      Amazing!!!!! Life Saver!!!!
      This is the greatest pool product ever! My pool was in bad shape last fall & I closed it without any treatment. This spring it was even worse! I thought I would have to drain my pool and start over. My pool "professional" even said it would take at least a week for my water to clear up enough to see the bottom of the pool. He gave me a regime to follow and said to call when the water was close to being clear. I put the 1st Aid in, and the water not only cleared up in a day and a half, but in 2 ... read more days it was absolutely sparkling! I called him and he didn't believe me! The water looks better than it ever has! My husband, who hates the pool, was even impressed!
    3. 1 decade ago
      FINALLY Something that works!!!!
      We've spent the last 4 weeks trying to get our pool clear. After many many trips to the pool store, lots of money spent and still no results, I saw this and decided what the heck. I was very skeptical as I've spent a whole lot more money without any results. Product came today after ordering yesterday. I put this in at 11 am. Went back out at 4 p.m. and to my amazement, THE POOL IS CLEAR!!!!! Will never be without this product. Thanks for such a great way to finally be able to see clearly.
    1. 10 months ago
      Works great
      This product really takes the rusty looking Material off all my plastic stairs and blow out tubes and filter the only problem is comes back in 10 days to 2 weeks literally just as dark as before but for a week and a half I have perfectly white everything I have tried everything to clear the pool with the exception of one thing which might be the problem because in 10 years of having this house I have never had this problem until last year the only thing I have not done is changed the sand in the ... read more filter in the pump. Which I will do before I get and install this product again. so again it works great I just get it reoccurring and that's the only thing left I think I can do
    2. 8 months ago
      Works fast
      Works fast when I put it directly on the stains, like magic. I love the ascorbic acid power.
    3. 1 year ago
      Works wonders!
      It completely removed all stains, even hard water rust from the liner within 24 hours.
    1. 12 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....
    2. 2 years ago
      amzing quality
      I buy this item all the time its amazing for even commercial pools.
    3. 3 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. 3 years ago
      Great product, poor shipping
      Product removes metals from pool water. Especially useful for use when topping off water line with hose. I am on a well and it definitely works. Poor shipping. Last order I made had empty bottles due to shipping department not taping lid shut and product emptied during shipping.
    2. 5 years ago
      A Warning about product
      this is just a warning. I use Zodiac Nature 2 Cartridge, which uses various metals to combat algecide. It also eans that I only need .05 chlorine. Have used 8 years and it works. This year I ordered the ultimate pool opening kit which unlike other kits includes a metals remover. My entire pool turned a ghastly green and I am still working to clear it. My Fault product says not to use with two types of pool chemicals but it did not specify Nature 2. It must work great because it destroyed my $100 ... read more cartridge and I have a clear green pool
    3. 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! :)
    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
      BY far the best thing ever made
      i close ALOT of pool here on the nj shore...As long as there is no algae when u close the pool, adding this bottle will keep it that way. Ive even added it to pools with some algae at the closing and the pools opened MUCH better then expected. i HIGHLY reccomend ALL of natural chemisty's products. The "Pool perfect +Phos free" weekly during the summer will make your pool the nicest in town.. besides no algae, your filter will stay cleaner, no scum lines, and the water feels like silk.. i really ... read more cant say enough good things about this company... Check out "nature 2" products as well... ANOTHER great product!
    3. 2 years ago
      I'm sold!
      Short version: this stuff works! Longer version: For the past several years I've been opening my 20,000 gallon (w/ mesh safety cover) pool to find it so green and nasty looking (due to the mesh safety cover), that at times I thought draining it might be a better option. That said, I figured I would give this [Pool Magic Plus Phosfree Pool Cleaner] a try, especially since it was still relatively warm when I closed the pool. I did the normal closing procedure, but this time added Pool Magic ... read more too. Then in March, I added a second bottle (as the product recommends). Well, I just pulled the pool cover off and... WOW! This stuff REALLY works! I was expecting to see the usual algae green water that's so dark and 'thick' you can't see the bottom of the pool (or the steps for that matter). However, this year, not only is the water not green but, for the first time EVER, I can actually see the bottom of the pool (even in the deep end)!
    • 2019-06-25
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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.