Periodic Products CuLator Ultra 4.0 Pool Metal Remover for 20,000 Gal — Continuous stain prevention, reusable skimmer pouch

When metals enter pool water—from source water, heater coil leaks, or equipment corrosion—they can produce green, brown or black stains and cloudy water. Periodic Products CuLator Ultra 4.0 is formulated to capture and hold dissolved metals without phosphate-based sequestrants or harsh additives. Designed for simple, hands-off use, the product treats large volumes and gives a visible color change as it removes metals so you can see it working.

How does CuLator Ultra 4.0 remove metals from my pool?

CuLator Ultra uses a proprietary absorbing medium inside a durable, mesh pouch that sits in the skimmer or pump basket. As water circulates, dissolved metal ions are trapped and bound within the pouch, reducing free metal concentration and lowering the risk of staining.

• Treats up to 4.0 ppm total dissolved metals per dose.
• Works continuously while installed—no mixing or dosing required.
• Color change in the pouch indicates metal uptake.

Will it work in both freshwater and saltwater pools and hot tubs?

Yes. CuLator Ultra 4.0 is formulated to be safe and effective in freshwater and saltwater systems, and it tolerates typical pool chemistry. It does not rely on phosphates or harsh oxidizers, so it can be used alongside standard sanitizers without interfering with routine maintenance.

• Safe for chlorine, bromine and salt chlorinator systems.
• Non-toxic composition avoids adding phosphate load.
• Suitable for spas and pools experiencing metal issues.

How simple is the application and how long does a pouch last?

Application is intentionally straightforward: place the reusable GatorEgg-protected pouch in the skimmer or pump basket and allow normal circulation to do the rest. Lifespan depends on metal concentration and flow, but a single pouch continues to capture metals for up to 30 days or more under many conditions.

• No measuring, mixing, or messy chemicals—drop-in use.
• GatorEgg shell protects the pouch and maintains water flow.
• Monitor pouch color to judge remaining capacity and replace as needed.

What kinds of metal problems is this best for and when should I choose a stronger treatment?

CuLator Ultra 4.0 is built for larger pools and more severe metal contamination—situations like well water fills, heater coil corrosion, or stubborn staining where standard low-capacity products fail. For extremely high metal loads, multiple pouches or followed-up treatments may be appropriate; testing your water before and after use helps determine next steps.

• Effective for copper, iron, manganese and lead removal.
• Four times the strength of many standard metal removers—good for pools up to 20,000 gallons.
• Use additional pouches or professional services for unusually high metal readings.

Who is this for: Periodic Products CuLator Ultra 4.0 is intended for pool and spa owners who require a high-capacity, easy-to-use metal remover—especially those with large pools, well water supply, recent equipment leaks, or recurring stains. If you want a hands-off, non-phosphate, non-toxic option that works in both fresh and salt systems and gives a visual indicator of activity, this product is a practical choice.