Discover Onyx chemical products at Piscines Geyser, your specialist in Quebec since 2004. The Onyx range covers all swimming pool and spa water maintenance: disinfection, shock treatment, water clarity and specialized care, for clear, healthy and balanced water. Delivery throughout Quebec and Canada.
The Onyx range
Disinfection and shock treatment
Chlor Krystal, Trichlore with zinc oxide, Diamond Shock and Quantum Shock (multi-action) to disinfect and quickly restore clear water.
Water clarity
Klarity (high-performance clarifier), spa clarifier, Krystal Filter (sand filter cleaner) and Perfect Filter Klean (cartridge cleaner) for crystal clear water.
Specialized care
No Metal and Stain Away against metals and stains, Phos Zero+ against phosphates, and Krystal Cell to clean your salt system cell.
Comfort
Heat Capture, a liquid solar blanket that helps retain water heat and reduce evaporation.
Why buy your Onyx products from Piscines Geyser?
Authentic products, advice from qualified technicians and local service on the North Shore of Montreal (Blainville), with shipping everywhere in Quebec and Canada. See also all our pool chemicals, our pH control products and our algaecides. A question? Write to us at info@piscinesgeyser.com or call 450-818-8200.
Frequently asked questions about Onyx products
What's the difference between chlorine and shock treatment?
Chlorine disinfects water daily; shock treatment (Diamond Shock, Quantum Shock) is a targeted and powerful dose to quickly eliminate bacteria, algae and cloudy water.
My water is cloudy, what product should I use?
After balancing the water and shocking it, a clarifier like Klarity helps fine particles clump together to be filtered.
How to remove metal stains?
Use No Metal for prevention and Stain Away to treat existing stains caused by iron or copper.
How to maintain my salt cell?
Krystal Cell cleaner dissolves calcium deposits on the cell plates to maintain its performance. Always follow the dosage indicated on the product label.