Phosphate Remover Cubes | Crystal Cube Plus | 2-Pack
Phosphates feeding your algae and clouding your water? Crystal Cube Plus is a dual-action phosphate remover and water clarifier that works continuously in your skimmer basket for up to 4 weeks. Simply drop it in and let it do the work, no measuring, no mixing, no fuss.
Phosphates enter pools through fertiliser runoff, tap water, and swimmer waste. They are the primary food source for algae, and elevated phosphate levels make it nearly impossible to keep a pool clear even with correct chlorine levels. Crystal Cube Plus removes phosphates at the source, reducing algae pressure and improving overall water clarity.
Product Specifications
| Pack Contents | 2 x Crystal Cube Plus cubes + skimmer socks |
| Duration | Up to 4 weeks per cube |
| Action | Phosphate removal and water clarification |
| Application | Skimmer basket (via included skimmer sock) |
| Suitable For | All pool types |
Key Features
- Phosphate Remover. Eliminates phosphates that feed algae, reducing algae pressure and chemical demand.
- Water Clarifier. Improves water clarity and sparkle by binding fine particles for easier filtration.
- Long-Lasting. One cube lasts up to 4 weeks, reducing the need for frequent maintenance doses.
- Easy to Use. Place in the included skimmer sock and drop into your skimmer basket, no measuring required.
- Continuous Action. Works around the clock as water flows through the skimmer.
How to Use
- Place one Crystal Cube Plus into the included skimmer sock
- Place the sock inside your skimmer basket
- Replace the cube when fully dissolved, approximately every 4 weeks
- Test phosphate levels monthly to monitor effectiveness
Tip: For best results, ensure your filter is clean before starting treatment. A dirty filter reduces water flow through the skimmer and slows phosphate removal. If phosphate levels are very high (above 1,000 ppb), an initial liquid phosphate remover treatment may be needed before switching to Crystal Cube Plus for maintenance.
Recommended Accessories
- 5-in-1 Test Strips - test phosphate, chlorine, and pH levels monthly.
- Pool Algaecide 1L - use alongside phosphate removal for a complete algae prevention routine.
- Crystalline Chlorine 4kg - maintain correct chlorine levels alongside phosphate control.
- Pool Clarifying Tablet - for a fast clarity boost alongside ongoing Crystal Cube Plus treatment.
Frequently Asked Questions
Q: How do I know if my pool has a phosphate problem?
A: Signs include persistent algae growth despite correct chlorine levels, cloudy water that does not clear with normal treatment, and high chlorine demand. A phosphate test kit or strips will confirm levels above 200 ppb, which is when treatment is recommended.
Q: How long does one cube last?
A: Up to 4 weeks depending on pool size, water flow through the skimmer, and phosphate load. Higher phosphate levels will deplete the cube faster.
Q: Can I use Crystal Cube Plus with my existing chemicals?
A: Yes, Crystal Cube Plus is compatible with chlorine, saltwater, and mineral pool systems. It does not affect pH, alkalinity, or chlorine levels.
Q: Do I need to remove the cube when shocking the pool?
A: No, Crystal Cube Plus is compatible with pool shock treatments. Leave it in the skimmer during shocking.
Pickup and Delivery
Perfect Pools Service Warehouse - 15C Douglas Alexander Parade, Albany, Auckland
Hours: Mon-Fri 9am-4pm | Sat 10am-2pm
NZ-wide delivery available. Charges calculated at checkout.
Questions? Email perfectpoolsnz@gmail.com or visit our contact page.
