--- product_id: 15987893 title: "Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA" brand: "pool mate" price: "€ 83.31" currency: EUR in_stock: true category: "Pool Mate" url: https://www.desertcart.hr/products/15987893-pool-mate-1-quart-concentrated-metal-out-stain-and-mineral store_origin: HR region: Croatia --- # Protects plumbing from rust & scale 1 quart treats 10,000 gallons Prevents metal stains & discoloration Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA **Brand:** pool mate **Price:** € 83.31 **Availability:** ✅ In Stock ## Summary > 💧 Keep your pool flawless—because your summer deserves zero stains! ## Quick Answers - **What is this?** Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA by pool mate - **How much does it cost?** € 83.31 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/15987893-pool-mate-1-quart-concentrated-metal-out-stain-and-mineral) ## Best For - pool mate enthusiasts ## Why This Product - Trusted pool mate brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Top-Ranked Pool Savior:** Ranked #3 in Swimming Pool Stain Removers with 4.4-star reviews—join thousands who refuse to settle for less. - • **Effortless Metal Defense:** One quart neutralizes metals in up to 10,000 gallons—keep your pool crystal clear all season. - • **Season-Long Protection Ritual:** Use at openings, closings, and monthly maintenance to stay ahead of stains and corrosion. - • **Ultimate Stain & Scale Shield:** Stops iron, copper, manganese, and more from ruining your pool’s pristine look and plumbing integrity. - • **Made in the USA, Trusted Worldwide:** Crafted with precision by Robelle Industries, ensuring premium quality and reliability. ## Overview Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor is a powerful liquid formula designed to remove and prevent metal-induced discoloration and stains in pools. Treating up to 10,000 gallons per quart, it protects pool water, plumbing, and surfaces from rust, scale, and mineral buildup. Ideal for seasonal use and ongoing maintenance, this USA-made product is a top-rated solution trusted by pool owners to maintain crystal-clear water and extend pool longevity. ## Description This product helps prevent discoloration of pool water due to iron, calcium, manganese, copper and other metals and minerals which may be present in the water supply. This product is an excellent general purpose sequestrant which helps protect plumbing and pool walls from rust, stain and scale. It should be used for all pool openings and closings and throughout the season as needed. For initial filling of pool, if iron or other metallic contaminants are suspected, add one quart of Metal Free for each 10,000 gallons of pool water. Add Metal Free while the pool is being filled and before chlorine is added. To correct an existing colored water problem (due to the presence of minerals in the pool water), first close the pool to all swimmers. Leave the filter pump running. Stop chlorinating the pool and allow the chlorine level to drop to zero. Lower the pH of the pool water to 6.8 with pH Lower, lowering the pH will re-dissolve the metallic impurities. Add one quart of Metal Free per 10,000 gallons of water and allow the pool water to circulate overnight, or until the water is clear. Re-adjust the pH of the pool water between 7.2-7.8 with pH Rise. Begin normal chlorination and pool operation. Swimming may resume when chlorine residual is 1.0-3.0 ppm. To make up for loss of Metal Free due to backwashing and/or splash-out, add one quart of Metal Free for each 20,000 gallons of pool water, once each month. ## Features - 1 quart per 10,000 gallons of water - Helps remove and prevent calcium, cobalt, copper, iron, lead, manganese, nickel and silver - This product helps prevent discoloration of pool water due to iron, calcium, manganese, copper and other metals and minerals which may be present in the water supply - This product is an excellent general purpose sequestrant which helps protect plumbing and pool walls from rust, stain and scale - It should be used for all pool openings and closings and throughout the season as needed ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00J3JMF9I | | Best Sellers Rank | #2,071 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3 in Swimming Pool Stain Removers | | Brand Name | Pool Mate | | Customer Reviews | 4.4 4.4 out of 5 stars (1,497) | | Item Form | Liquid | | Item Type Name | Pool Stain Remover | | Item Weight | 32 Ounces | | Manufacturer | Robelle Industries | | Manufacturer Part Number | 1-2550 | | Model Number | 1-2550 | | Number of Items | 1 | | Package Size Name | 1-Quart | | Product Benefits | Prevents metal staining and discoloration, removes metals from water, protects pool plumbing rust scale | | UPC | 676215211564 | | Unit Count | 32.0 Fluid Ounces | ## Product Details - **Brand:** Pool Mate - **Item Form:** Liquid - **Item Weight:** 32 Ounces - **UPC:** 676215211564 ## Images ![Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Image 1](https://m.media-amazon.com/images/I/61QqUQ7YdNL.jpg) ![Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Image 2](https://m.media-amazon.com/images/I/616gjXaQBnL.jpg) ![Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Image 3](https://m.media-amazon.com/images/I/71n-4y1SHsL.jpg) ![Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Image 4](https://m.media-amazon.com/images/I/61uCLp12ZrL.jpg) ![Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Image 5](https://m.media-amazon.com/images/I/71qAPaQyAKL.jpg) ## Available Options This product comes in different **Size, Style** options. ## Questions & Answers **Q: what are the ingredients?** A: According to the MSDS I have for it, it contains the same active ingredient that's used in many of the top brands, HEPD, which is the preferred metal sequestrant of many of the TroubleFreePool.com gurus. Chemical Name Wt.% CAS ----------------------------------------------------------------------------------------------------- 1-Hydroxy Ethylidene-1, 1-Diphosphonic Acid (HEDP) 30 - 50 2809-21-4 Phosphonic Acid < 0 - 2 13598-36-2 COMMENTS: Proprietary blend. Ingredients in this section have been determined to be hazardous as defined by 29CFR 1910.1200. **Q: Can you use Nature 2 cartridges after using this product to clear the water.** A: I don't see why not **Q: Will this product remove cobalt?** A: It is suppose to eliminate all metal. It works in my pool **Q: Will this remove the iron from the bottom of my pool? I do not have a pool filter** A: I do not know if it will do that. I use it when I fill my hot tub and it has a filter. ## Frequently Bought Together - Pool Mate 1-Quart Concentrated Metal Out Stain and Mineral Inhibitor, Pool Metal Remover, Stain Remover, Made in USA - Clorox® Pool&Spa™ Swimming Pool Algaecide, Prevents and Treats Pool Algae, Non-Foaming, 1 Quart (Pack of 1) - Clorox® Pool&Spa™ Swimming Pool pH Up, Raises pH, Protects Against Eye and Skin Irritation, 4LB (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/15987893-pool-mate-1-quart-concentrated-metal-out-stain-and-mineral](https://www.desertcart.hr/products/15987893-pool-mate-1-quart-concentrated-metal-out-stain-and-mineral) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-17*