DGS®-DRYDEN GLASS SAND FOR ECO-FRIENDLY WATER FILTRATION
DGS® is an advanced filtration media made from 100% recycled glass in Dryden Aqua’s state-of-the-art facilities. Unlike Activated Filter Media (AFM), DGS® is produced from mixed glass and is not activated.
Despite this, DGS® delivers ultra-fine mechanical filtration while significantly minimising bacterial clogging compared to traditional sand filters. Produced in full compliance with ISO standards, DGS® undergoes a unique washing process using 100% rainwater, ensuring the purest and safest non-activated glass media available today.
BENEFITS OF DGS®
- Cleaner, Clearer Water: Removes up to 30% more particles than standard sand filters.
- Reduced Chemical Use: Achieve high filtration efficiency with less chlorine consumption.
- Healthier Environment: Minimizes trichloramine formation for better air quality in swimming areas.
- Lower Water Waste: Requires shorter and slower backwashing (240 seconds to clear 99% of retained particles at 45 m/hr).
- Long-Lasting Performance: Maintains consistent efficiency throughout its life and lasts twice as long as sand.
DGS® vs. Traditional Sand vs. AFM®: Key Differences
| Feature | DGS® (Dryden Glass Sand) | Traditional Filter Sand | AFM® (Activated Filter Media) |
|---|---|---|---|
| Material & Processing | Made from 100% recycled mixed glass. Washed and processed but not activated | Naturally occurring silica. Minimal processing. | Made from specific recycled glass (green/brown) and subjected to a proprietary 3-step activation process |
| Filtration Performance | Removes up to 30% more particles than sand and filters particles down to ~7 microns | Standard filtration removes larger particles. Less effective against fine contaminants. | Filters at least twice as effectively as sand. Captures particles 4x smaller than sand or standard glass media |
| Bio-Resistance | Biofouling is less than that of sand due to a smooth surface, but it is not bio-resistant | Porous surface promotes bacterial growth and biofilm formation (mud-balling) | Bio-resistant and self-sterilising. The activation process inhibits bacterial growth and prevents biofouling. |
| Backwash Efficiency | Requires shorter, slower backwashes (e.g., 240 seconds at 45 m/hr) | Requires longer, faster backwashes and often air scouring to clean effectively | Most efficient backwash. Requires 4-6 minutes at 30-50 m/h. Saves up to 50% of backwash water compared to sand |
| Lifespan & Value | Lasts 2-5 times longer than sand. Low maintenance and cost-effective | Typically needs replacement every 3-5 years as it wears and becomes less effective. | Longest lifespan, often 20+ years. Performance remains consistent and never needs recharging |
| Cost | Lower-cost option than AFM®, priced similarly to standard sand, but provides better performance | Lowest initial cost. | Higher initial cost but offers the highest performance and lowest long-term operational costs. |
PRODUCT FEATURES
Made from 100% recycled glass sourced locally
Improves the performance of all sand filters
Reduces the formation of biofilm in the filter bed
Safe product manufactured under ISO9001-2015 standards
MORE ABOUT PRODUCT
FAQs ABOUT DRYDEN GLASS SAND
DGS is a high-performance filter media made from 100% recycled glass. It is used in water filtration systems to provide cleaner, safer, and healthier water.
Yes, DGS is NSF-certified and safe for drinking water filtration systems.
DGS has a lifespan of more than 15 years with minimal maintenance.
You can directly replace the existing sand in your filter with DGS. No major changes in the filtration system are needed.
Yes. DGS requires less backwashing and saves water during cleaning cycles.
You can contact SVS Aqua directly through the website's contact page or request a quote.