Pool Magnet Plus Metal Stain Preventer - Concentrated 1 Qt (Pack of 2)

Our review of Pool Magnet Plus finds it most useful for pool owners dealing with metal in their fill water who need a straightforward monthly treatment to prevent staining. The biggest reason to buy is its powerful chelating action that locks up iron and other metals and moves them to the filter for removal, making it an effective preventive step rather than a laborious reactive fix. For clear pools discolored by metals or for maintenance where fill water contains iron, this concentrated formula simplifies routine care.

Key Features

• Effective Metal Chelation: The formula wraps up dissolved metals so they can be captured by the pool filter, reducing the risk of stains forming on plaster or vinyl surfaces.
• Stain Prevention and Treatment: It prevents new metal stains and can assist in treating fresh stains, helping restore discolored but clear water.
• Concentrated Reformulation: The product is more concentrated than previous versions, so smaller maintenance doses cover a typical pool for 3-4 weeks.
• Simple Dosage Guidance: Initial shock dosing and routine maintenance instructions are straightforward, with 1 quart per 10,000 gallons for start-up and 3 oz per 1,000 gallons for monthly care.
• Filter Removal Mechanism: By depositing bound metals into the filter, the treatment avoids relying solely on scrubbing, which customers report reduces manual effort.

Who It's For

Pool Magnet Plus is aimed at homeowners and maintenance professionals who fill pools from sources that contain iron or other metals and want a monthly, preventative approach. It is especially valuable for pools that show clear discoloration rather than cloudy chemistry issues, since the chelating action targets dissolved metals specifically.

Those with extensive, set-in stains or pools requiring heavy chemical remediation may need additional treatments such as stain removers used in combination; very small plunge pools or systems without an effective filter may see limited benefit.

Pros & Cons

Pros

• Works quickly to clear metal discoloration and customers note visible improvement within minutes in many cases.
• Reduces need for scrubbing by binding metals and sending them to the filter for removal.
• Concentrated reformulation means monthly maintenance doses last 3-4 weeks, simplifying routine care.
• Clear dosage guidelines cover initial treatment, maintenance, and fresh stains for flexible use.

Cons

• Some customers question value for money, with mixed opinions on cost versus benefit.
• Severe, set-in stains may require multiple bottles or complementary products to fully resolve.

Specifications

Our Verdict

Pool Magnet Plus is a sensible choice for anyone who fills a pool with iron-containing water and wants a low-effort monthly defense against metal stains. Its chelating action and filter-based removal make it practical for regular maintenance, and the concentrated formula reduces frequency and volume of dosing, offering good overall value for typical residential pools.

Frequently Asked Questions

How often should I use Pool Magnet Plus?
Use the maintenance dose every 3-4 weeks; initial dose is 1 quart per 10,000 gallons.

Will it remove existing rust stains?
It can assist with fresh metal stains and discolored clear water, but severe or set-in stains may need multiple treatments or complementary stain removers.

Do I need to scrub after treatment?
Most users report no scrubbing is necessary because the product binds metals and deposits them into the filter for removal.