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Natural Chemistry Scale Free, 2 L Bottle | 17511NCM

NaturalChemistry SKU: 17511NCM
Natural Chemistry Scale Free, 2 L Bottle | 17511NCM - Chems - img - 1

Natural Chemistry Scale Free, 2 L Bottle | 17511NCM

NaturalChemistry SKU: 17511NCM
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Natural Chemistry 17511NCM – SCALEfree® Pool & Spa Water Treatment (2 L Bottle)

The Natural Chemistry 17511NCM, sold under the name SCALEfree®, is a liquid treatment designed to prevent mineral scale buildup and metal staining in pool and spa water. It helps protect pool surfaces, salt systems, heaters, and plumbing by keeping calcium, iron, copper, and other minerals in solution instead of allowing them to precipitate out and form scale or stains.

Key Features

  • Phosphate- and acid-free formula — avoids the problems associated with traditional acid-based stain/scale treatments.
  • Protects against scale formation from hardness (calcium, magnesium) and metals (iron, copper, etc.).
  • Helps prevent staining and scaling on pool surfaces, heaters, salt-generator cells, plumbing lines, and other equipment.
  • Compatible with all common pool sanitizing systems (chlorine, bromine, salt, mineral, etc.), and safe for use with standard pool surfaces and finishes.
  • Easy-to-apply liquid — no need for dilution; simply pour directly into pool/spa with circulation running.

Specifications

  • Brand: Natural Chemistry
  • Part Number: 17511NCM
  • Volume: 2 Liters (67.6 oz Bottle)
  • Product Type: Mineral & scale prevention / metal stain inhibitor
  • Recommended Use: Periodic maintenance — monthly or after water refills / heavy dilution events

Typical Use & Dosage Guidelines

  • Use SCALEfree® upon filling a new pool, after refilling, or anytime hardness or metal levels are elevated.
  • For ongoing maintenance: add the manufacturer-recommended monthly dose (as indicated on the product label) to keep minerals stabilized and prevent future scaling.
  • Ensure water is balanced (pH, alkalinity, calcium hardness) before adding to maximize effectiveness.
  • Avoid using with biguanide sanitizer systems; safe for chlorine, bromine, and saltwater systems.

Why It’s Useful

SCALEfree® is a proactive maintenance chemical that helps extend the life of pool heaters, salt cells, and other metal/plastic equipment by reducing scale buildup and preventing unsightly stains on pool surfaces. It’s especially beneficial in areas with hard water or high mineral content, as well as for pools with salt systems or frequent water replenishment — making it a valuable product for pool owners and pool-supply retailers alike.

Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

  • We do not ship on Saturday or Sunday.
  • Orders totaling more than $300 will require signature confirmation upon delivery.
  • We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
  • Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
  • Expedited shipping options are available at checkout.

Return Policy:

  • Products that are received damaged will receive a refund in store credit.
  • Most products are eligible for return within 30 days of receipt, except where noted below.
  • To initiate a return, please complete an RMA form prior to sending your item back.
  • Original shipping costs are non-refundable and will be deducted from the return credit.
  • Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
  • Some returns will be charged an automatic 15% restocking fee.
  • We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
  • Please complete the return form to receive your RMA number and return shipping label.
  • Chemical products are not eligible for return under any circumstances.
  • The Pentair Colorsync 618031 is not eligible for return.
  • Pool cleaners are not eligible for return.
  • Opened seals and o-rings are not eligible for return.
  • Capacitors are not eligible for return.
  • Plastic popup tools are not eligible for return.
  • Automation components and circuit boards are not eligible for return.
  • If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
  • Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.