Lo-chlor Leak Sealer - Pool Leak Sealer - Pool Chemical

Lo-Chlor Leak Sealer is an advanced liquid formulation that seals minor cracks and leaks in pool pipework and pool surfaces — without draining the pool. Fast-acting and easy to use, it's the world's most popular specialty pool leak sealer, sold in over 25 countries.

Not classified as a Dangerous Good under Australian Dangerous Goods (ADG) Code, IATA, or IMDG/IMSBC criteria.

Key Benefits

• Seals minor leaks in most swimming pools and spas
• Can seal leaks losing up to 3.5cm of water per day (in a 50,000L pool)
• No need to empty the pool or spa
• Fast-acting — usually stops leaks within 24 hours
• 1L treats up to 50,000 litres of pool water

How It Works

Lo-Chlor Leak Sealer has a very high pH (approximately 12). When added to pool water, it adjusts to the pool's pH (7.0–8.0) and begins to solidify in the presence of oxygen at the site of the leak, effectively plugging minor cracks and gaps.

Important Notes

• Not suitable for vinyl liner pools
• Larger defects require proper plumbing and maintenance
• Remove automatic pool cleaners from the pool before use
• Do not allow Leak Sealer to pass through the filtration system
• Do not exceed the recommended dosage rate

Frequently Asked Questions

Will Lo-Chlor Leak Sealer work on my vinyl liner pool?

No. Lo-Chlor Leak Sealer is not suitable for vinyl liner pools. It is designed for concrete, fibreglass, and tiled pool surfaces.

How long does Lo-Chlor Leak Sealer take to work?

In most cases, Lo-Chlor Leak Sealer stops leaks within 24 hours of application.

How much Lo-Chlor Leak Sealer do I need?

One 1L bottle treats pools up to 50,000 litres. For larger pools, use proportionally more.

Can I use Lo-Chlor Leak Sealer with my automatic pool cleaner in the water?

No. Remove all automatic pool cleaners before adding Leak Sealer to the pool.

Does Lo-Chlor Leak Sealer fix large cracks or broken pipes?

No. It is designed for minor cracks and leaks only. Larger defects require professional plumbing repairs.

Downloads

• Lo-Chlor Leak Sealer — Safety Data Sheet / MSDS (PDF)