Best Swimming Pool Stain Removers for Hot Tub of 2025

Transform your hot tub into a clear and inviting oasis with ADIOS! Hard Water Clarifier. This powerful clarifier quickly eliminates cloudy water caused by problematic minerals, allowing your filter to efficiently remove deposits from your spa. Say goodbye to ugly scale build-up caused by excess calcium and magnesium - ADIOS! gradually breaks apart these deposits, leaving your hot tub surfaces and equipment clean and fresh. Not only that, but this clarifier also removes and prevents stains caused by metals like iron and copper, so you can bid farewell to unsightly red and green stains. With just 2oz of ADIOS!, you can treat an 800 gallon hot tub for a week, providing nearly 4 months of protection for a standard-sized tub. Trust in ADIOS! - the brand trusted by professionals for over 30 years.

This Stain and Scale Control for Pools, Spas and Hot Tubs is a non-hazardous and environmentally safe solution that can prevent metal staining and scale formation. It can be used in both fresh and salt water, and the high concentration allows it to be used in pools of all sizes. This product is a safer and more effective alternative to toxic and poisonous alternatives.

AquaDoc Spa Stain and Scale Control for Hot Tubs is a professional-grade product that prevents and removes stains, scales, and metals from hot tubs, spas, and pools. It is compatible with both Bromine and Chlorine sanitized spas, and it works to remove all types of metals, including Calcium, Iron, and Copper. AquaDoc delivers a quick-dissolving hot tub water softener that prevents hard water buildup and decreases water hardness. Its advanced formula reduces alkalinity levels, leaving clear and blue water. Made in the USA with the best spa products, AquaDoc helps you spend more time enjoying your hot tub instead of dealing with chalky build-up on spa equipment and surfaces.

The Clorox Pool&Spa Cleanse is designed to keep your spa plumbing in top shape. It deeply cleans your entire plumbing system, ensuring hidden contaminants are effectively removed. By eliminating build-up from oils and lotions, it helps maintain clear water and reduces unpleasant odors. This product also boosts your filter's performance, leading to improved water clarity and less frequent maintenance. With easy application, you can simply add it to your spa system to refresh your water quickly, making spa care hassle-free.

Spa & Hot Tub Scale Remover is a specialized product designed to remove mineral scale buildup from the surfaces of spa or hot tub equipment, preventing damage and improving overall performance. The product breaks down mineral buildup and dissolves it, making it easy to flush out of the system. With regular use, the scale remover helps prevent mineral buildup and keep spa and hot tub equipment running smoothly.

In The Swim Metal Out is designed to keep your spa water clear and free from stains. It effectively removes metals like iron and copper that can cause discoloration, ensuring your spa looks its best. When you fill your spa with fresh water, using this product helps prevent any metallic impurities from ruining your experience. Not only does it stop new stains, but it also works to gradually eliminate existing ones, restoring your spa's surface. With its powerful formula, you can enjoy a clean and inviting spa environment.

GRITT Metal Stain Control is a top-quality spa product that helps you control and prevent stain and scale deposits in your hot tub, pool, or spa. Compatible with both Bromine & Chlorine, this spa descaler effectively removes various metals, keeping your water clear and free from stains. Its quick-dissolving formula acts as a water softener, preventing hardness build-up. Additionally, this product serves as a calcium decreaser, reducing spa water hardness and minimizing stains caused by high calcium levels. Made in the USA, this professional-grade formula ensures your hot tub stays clean and clear.

SpaGuard Spa Stain/Scale Control is a 1 quart liquid formula that prevents scale formation and cloudy water due to high calcium levels in your spa or hot tub. It also removes some scale buildup on the surface and relatively fresh metal stains from spa surfaces. This powerful liquid formula is easy to use, just add it weekly to safeguard your spa or hot tub from these threats. The color of the liquid is natural brown.

Introducing Bespoke+ Spa Stain and Scale Control, the ultimate solution for maintaining your hot tub water quality. Hard water can cause various issues in your spa, but with our stain and scale remover, you can easily control the calcium levels in your hot tub. Say goodbye to cloudy water with our spa descaler, which acts as a water softener and reduces alkalinity and calcium levels. Our product also works as a stain remover, eliminating existing spa scale stains and metal stains. Regular use of our stain and scale control prevents future stains and keeps your spa water clear. Plus, our spa chemicals are paraben and BPA free, ensuring a safe and eco-friendly solution. Trust Bespoke+ for all your spa maintenance needs!

Make your pool perfect again with Essential Values Pool Cleaner! This natural citric powder clarifier is a safe and effective solution for pools, spas, and hot tubs. With 2 containers included, each providing 2 uses per 10,000 gallons, one bottle can work up to 20,000 gallons of water. Unlike harsh chemical-based cleaners, Essential Values Pool Cleaner is safe to use with chlorine and other pool cleaners, and will not alter the chemical balance of your pool water. The natural citric base is compatible with all pool sanitizing systems and works perfectly on vinyl liners, fiberglass, and metal surfaces. Use it to deeply penetrate long-lasting stubborn stains and improve the surface quality and appearance of your pool. Proudly made in the USA, Essential Values Pool Cleaner is tried and tested with thousands of great customer reviews.