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Natural Chemistry's Stain Free

Natural Chemistry's Stain Free

  • Top Brand Discount - SAVE up to 17%
  • All-natural Stain Remover
  • 100% Citric Acid
  • Removes metal stains from pool liners and finishes - works great on steps

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Product Name Price Qty Item #
1.75 lb


(2) 1.75 lb


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Product Description

Remove Metal Stains from Pools Safely with Natural Chemistry's Stain Free!

Natural Chemistry Stain Free is an all-natural way to eliminate staining to pool liners and finishes. Stain Free is a citric acid product that is ideal for treating staining on all pool surfaces and is compatible with all sanitizing systems.

Product Specifications

Directions for use:
Note: Operating the pool for a couple of days without chlorine can create an algae concern. Follow your pool dealer’s recommendations on steps you can take to protect your pool from algae during this metal stain removal process.
  • - Balance pool water chemistry before using Stainfree: pH:7.2-7.6, Alkalinity: 80-120ppm, Calcium Hardness: 200-400ppm, CYA below 50ppm, Phosphates: below 100ppb Note: Stain removal products work best when the pH is on the lower side of acceptable range (7.2)
  • - Important: Before starting the metal stain removal or water discoloration process (step 4), a pulp based filter aid must be added to cartridge and sand filters. DE filters must be properly charged.
  • - Lower chlorine level to 1ppm or less (A high chlorine level or adding oxidizing agents during the process will prevent Stainfree from working as designed.)
  • - Surface Staining: If the surface is stained, add 1lb of Stainfree per 10,000 gallons as close to the stained area(s) as possible with the pump off overnight.
  • - Water Discoloration: If the entire body of water is discolored, put the pool on recirculate, add 1lb of Stainfree per 10,000 gallons to the pool water evenly around the edge. Let the circulation run for one hour. After one hour, shut the pump off and let sit overnight.
    Before turning the pump back on, brush the pool walls and floor thoroughly.
    Turn the pump back on and add Metalfree™ evenly to the pool around the edge at a rate of 33.9oz per 20,000 gallons.
    With the pump still on, vacuum the pool walls and floor thoroughly.
    After vacuuming, clean filters:
    Sand filter- backwash for at least 3 minutes and then rinse for 2 minutes
    Cartridge filter- clean filter and filter tank thoroughly
    DE filter- backwash and recharge with DE
  • - Test and rebalance water. DO NOT SHOCK THE POOL FOR AT LEAST 1 WEEK.
    Note: If chlorine level is low, add small amounts of chlorine. Do not exceed 2ppm. For salt generator pools, a granular shock is recommended instead of turning the generator to its boost (superchlorinate) function after the recommended 1 week.

Use Natural Chemistry Metalfree™ as a weekly maintenance to prevent future metal staining. Apply 4oz per 10,000 gallons once a week.

Do not swim until stain procedure is complete and normal chlorine residual is established.
MPN: 7400 : 1.75 lb
MPN: 7400 : (2) 1.75 lb

Product Reviews

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  • Stain Free Review by

    5 1 5

    I am extremely pleased with this product.I used it last year and again this year .

  • works great!!! Review by

    5 1 5

    I love this!! our pool was uncovered for the winter due to some concrete work. Had stains from leave and concrete that set all winter. Didn't think I would ever get the stains out, but this worked overnight!!! put it in and the next day pool was stain free. Highly recommend this product

  • This stuff really works...and FAST! Review by

    5 1 5

    Could not find anything to get rid of a stain that just popped up out of nowhere.....nothing worked, except for STAIN FREE. It's worth every penny.

  • Wow! Review by

    5 1 5

    Used this stuff on a fiberglass pool that came with a foreclosed house we bought. The pool hadn't been used in 4 years was filled with leaves and looked like a swamp. After draining the pool and filling with new water it was obvious that the sides were stained and looked awful. We added 2 things of this and waited 24 hours. The result was absolutely white walls. I could not believe my eyes!

  • Unreal! Review by

    5 1 5

    I do not usually take the time to write a "review" but I had to. I have a above ground pool with serious stains that were from Metal Dumbells that were holding down my Steps, Rusted. Needless to say the pool looked awful. I tried other Chemicals from "other places". No luck. I put this product in at about 6:00pm, ran the filer. Let it go overnight. Came out this morning and it is completely Stain free. It took brand new. My wife and I were shocked. I was stressing as Memorial Day Weekend is here and we are having BBQ and I was Embarrassed at how the liner looked. Not anymore! I am so excited, thank you! I would recommend this to anyone!!!! :-)

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