CrystalClear Filtration Made Simple
The Davey CrystalClear ER Series brings easy, reliable filtration to everyday pool care. Its premium fibreglass vessel is a seamless one-piece design for long service, while smart Fish Tail Laterals distribute flow evenly through the media for beautifully clear results. With a smooth-action 6-Way Multiport Valve, built-in waste port sight glass, and a liquid-filled pressure gauge, it’s simple to check, backwash, and get back to swimming.
Choose the media you prefer — sand, glass, or Zelbrite — and enjoy efficient depth filtration that keeps water sparkling day after day. The ER Series pairs perfectly with modern energy-saving pumps and suits salt, mineral, and freshwater pools alike. Crafted by Davey for Australian conditions, it’s a dependable, low-maintenance filter that helps you spend more time enjoying your pool and less time looking after it.
Why Choose the Davey CrystalClear ER Series?
Pool care feels easier when your filter works smarter. With durable Australian engineering and thoughtful details, the CrystalClear ER Series delivers reliable performance, efficient operation, and sparkling water clarity – all while saving time, water, and energy.
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Water Saving
Designed with Fish Tail Laterals to improve filtration and backwashing efficiency, significantly reducing backwash time and providing water saving of up to 30%.
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Energy Saving
Hydraulic efficiency halves the backwash flow rate, enabling low-power, energy-efficient pumping options.
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Clearer Water
A decreased operating flow rate boosts filtration effectiveness and improves pool water clarity.
Key Features
- Seamless One-Piece Fibreglass Vessel: Manufactured with a precision filament winding machine for long and reliable working life.
- Fish Tail Laterals: Improved hydraulic efficiency reduces backwash time by up to 30% and reduces backwash flow rate by half.
- Enhanced Water Clarity: Lower operating flow rate promotes finer filtration through the media bed.
- 6-Way Multiport Valve: Durable lever action handle with quick-connect unions.
- Backwash Indicators: Liquid-filled pressure gauge and built-in waste port sight glass for high visibility during backwashing.
- High Operating Capability: Rated up to 250 kPa with a smooth, cylindrical profile for efficient flow.
- 50 mm Plumbing Connections: Straightforward integration with common 50 mm pumps and pipework.
- Media Flexibility: Works with sand, glass media, or Zelbrite to suit clarity targets and maintenance preferences.
- Generous Filtration Capacity: 0.64 m² filter area and 322 L media volume support efficient cleaning performance.
- Rapid Water Turnover: Processes up to 183,240 L in 6 hours for dependable circulation.
- Wide Operating Range: Maximum working temperature up to 50 °C.
Technical Specifications
| Model |
DCM2440 |
DCM2450 |
DCM2850 |
DCM3250 |
DCM3650 |
| Tank Diameter (inches) |
24 |
28 |
32 |
36 |
| Maximum Flow Rate (L/min)* |
226 |
308 |
402 |
509 |
| Backwash Flow Rate (L/min) |
189 |
257 |
335 |
424 |
| Filtration Area (m²) |
0.28 |
0.38 |
0.50 |
0.64 |
| Maximum Operating Pressure (kPa) |
350 |
250 |
250 |
250 |
| 6-Hour Turnover (litres) |
81,360 |
110,880 |
144,720 |
183,240 |
| Media Volume (L) |
106 |
154 |
233 |
322 |
| Sand 16/30 grade (20kg / bags) |
155 / 8 |
225 / 12 |
340 / 17 |
470 / 24 |
| Zelbrite (15kg / bags) |
117 / 8 |
169 / 12 |
255 / 17 |
353 / 24 |
| Fine Glass (15kg / bags) |
80 / 6 |
116 / 8 |
175 / 12 |
242 / 17 |
| Coarse Glass (15kg / bags) |
53 / 4 |
77 / 6 |
117 / 8 |
162 / 11 |
| Inlet/Outlet Size (mm) |
40 | 50 | 50 | 50 | 50 |
| MPV (Multiport Valve) Connection Type |
Clamp type | Clamp type | Bolt type | Bolt type | Bolt type |
| Dimensions H × W × D (mm) |
1022 × 624 × 624 |
1050 × 624 × 624 |
1072 × 723 × 723 |
1157 × 810 × 810 |
1234 × 910 × 910 |
| Maximum Working Temperature |
50 °C |
| Warranty |
Tank: 10 years (domestic) / 5 years (commercial)
Multiport Valve: 3 years
Components: 1 year (pressure gauge, laterals, fittings, labour)
|
* Based on residential flow rate at a velocity of 48 m³/hr/m².
Confidence You Can Depend On
Davey has supported Australian pools for generations with equipment built for local conditions and backed by local expertise. The CrystalClear ER Series continues that commitment to performance, simplicity, and long service life.
✔ Australian brand heritage – trusted by pool owners for decades
✔ Built for local conditions – reliable operation in real-world Aussie backyards
✔ Energy & water saving – efficient laterals reduce backwash time and flow
✔ Simple control – 6-Way Multiport Valve with sight glass and gauge
✔ Long warranty coverage – tank, valve, and components clearly backed
✔ Proven reliability – dependable performance season after season
Frequently Asked Questions
What pools is this filter suitable for?
In-ground and above-ground pools with salt, mineral salt, or fresh water. The 36" model pairs well with common domestic pump sizes and 50 mm plumbing.
Which media should I use – sand, glass, or Zelbrite?
All three work. Sand is simple and proven, glass media offers finer capture and longer life, and Zelbrite provides high performance with lower backwash needs. Choose based on clarity goals and maintenance preference.
How do I know when to backwash?
When the pressure gauge is ~50 kPa above its clean (start-up) reading or when water clarity declines. Set the Multiport Valve to Backwash and run until the sight glass water runs clear, switch to Rinse until clear, then return to Filter for normal operation.
How often should I backwash?
Frequency depends on debris load and usage. Typically, every 2–4 weeks under normal use. Always follow the gauge/sight glass rather than a fixed calendar.
What is the operating pressure and temperature?
The 36" model is rated up to 250 kPa operating pressure and up to 50 °C maximum working temperature.
Can I use this filter with a variable-speed (energy-efficient) pump?
Yes. The Fish Tail Laterals and hydraulically efficient design support low-RPM operation and reduced backwash flow rates.
How do I perform the initial start-up?
Fill the vessel half with water, add the specified media, assemble the valve and unions, then set the multiport to Backwash and run until clear. Switch to Rinse for 10–15 seconds, then to Filter for normal operation.
What routine maintenance is recommended?
Backwash as needed, monitor the pressure gauge, inspect unions for leaks, and keep baskets clean. Maintain balanced water chemistry to protect media and equipment.
How do I winterise the filter?
Turn off the pump, open the air release, set the valve between Filter and Waste (winterise position), remove drain plugs, and drain pipework to prevent freeze damage.
What should I check if the water isn’t clear?
Ensure adequate filtration time, perform a thorough backwash/rinse, confirm water chemistry, check for suction air leaks or blockages, and verify pump/flow is appropriate for the filter size.
