Piscimar Aqua Stop

The Piscimar Aqua-Stop PM-660 is a liquid sealant for minor leaks in swimming pools and spas. It is designed to help close pores and small cracks in pool surfaces or the hydraulic circuit – without draining the pool. It works only on minor water loss, and correct application (especially keeping the product away from the filter) is essential.

What the Piscimar Aqua-Stop PM-660 is used for

The Piscimar Aqua-Stop PM-660 targets small, hard-to-locate leaks in pools and spas – whether the source is a surface pore, a hairline crack, or a minor fault somewhere in the hydraulic circuit.

It is the right tool when water loss is clearly above normal evaporation but no obvious break or structural damage is visible. The liquid disperses through the water and solidifies on contact with air, sealing pores and fine cracks up to 3 mm in diameter.

For larger fractures or structural problems, a technical repair is needed – this product is not a substitute.

Dosage and application guide for Piscimar Aqua-Stop

The Piscimar Aqua-Stop PM-660 travels through the water to reach the leak point, which means the filtration system must be set to bypass or recirculation mode throughout the treatment. The product must never pass through the sand or cartridge filter.

Step-by-step application

1. Switch off the pool pump before beginning treatment.
2. Set the valve to bypass or recirculation to prevent the product from reaching the filter.
3. Add 1 L per 75 m³ of pool water, scaled to your pool or spa volume.
4. If the leak is on a visible surface, pour the product directly into the water over the affected area.
5. If the leak is unlocated or in the pipework, add the product via the skimmer.
6. Leave the pump off for around 40 minutes to allow the product to begin circulating.
7. Restart the pump and run it for at least 8 hours in bypass or recirculation mode.
8. Mark the water level and check again after 24 hours to assess whether loss has reduced.

What to expect after applying Piscimar Aqua-Stop

Once added, the Piscimar Aqua-Stop PM-660 circulates through the water in bypass or recirculation mode, working its way toward the leak source.

Keep the system running as directed and avoid changing the valve position before the recommended time has elapsed.

If the pool continues losing water at the same rate, the leak may be larger than 3 mm, incorrectly located, or require professional repair.

Why choose Piscimar Aqua-Stop for minor pool leaks

The Piscimar Aqua-Stop PM-660 offers a practical first step when a pool or spa is losing water slowly and the source is difficult to pinpoint.

Rather than immediately draining the pool or calling in a technician, Aqua-Stop gives you a chance to seal compatible pores and hairline cracks with minimal disruption.

• Designed for minor leaks in swimming pools and spas.
• Seals pores and fine cracks up to 3 mm in diameter.
• Can act on surface faults or hydraulic circuit leaks.
• Dose: 1 L per 75 m³ of water.
• Compatible with liner, polyester, gresite, and tile finishes.

Aqua-Stop does not replace a technical repair where a large break, structural crack, or serious water loss is involved.

Why buy Piscimar Aqua-Stop from Pools&More

At Pools&More, you will find the Piscimar Aqua-Stop PM-660 backed by a specialist team with deep expertise in pool care, water treatment, and maintenance.

As an official Piscimar stockist, Pools&More can help you assess whether Aqua-Stop is the right match for your leak – before you buy – so you avoid using it in situations where a professional repair is the correct course of action.

• Official Piscimar stockist.
• Specialist pool and maintenance retailer.
• Pre- and post-purchase advice.
• Guidance on choosing the right product for minor pool leaks.

Frequently asked questions