🏊 Waterco 2350 SMDD Commercial Bobbin Wound Filter Tank – 4 Bar, 1.2 Metre Deep Bed

The ultimate commercial filtration solution delivering 130 m³/hr for the world’s most demanding aquatic installations

📋 Product Overview

The Waterco 2350 SMDD Commercial Bobbin Wound Filter Tank is the ultimate model in Waterco’s acclaimed SMDD deep bed commercial filter range – the largest and most powerful single-vessel deep bed filter available. With an extraordinary 2350mm tank diameter and 4.34 m² filter area, this industrial-scale filter delivers an exceptional 130 m³/hr flow rate, making it the definitive choice for the world’s most demanding aquatic installations including Olympic competition venues, international water parks, major municipal aquatic centres, and high-capacity industrial water treatment facilities.

Featuring industrial-grade 160mm (6-inch) flange connections and a generous 1200mm deep media bed, the SMDD 2350 provides the absolute maximum flow capacity and enhanced particle capture for world-class facilities. With over 8 tonnes of media capacity, this filter delivers the longest filter runs and exceptional dirt-holding capacity unmatched by any other single-vessel deep bed filter in the range.

Manufactured using Waterco’s precision digitally-controlled filament winding technology, this filter tank features seamless bobbin-wound fibreglass construction that commercial operators worldwide trust for decades of reliable, virtually maintenance-free service. The tank-only configuration with 4 bar pressure rating provides complete flexibility for bespoke system specification at the highest level.

✨ Key Features

✅ 2350mm Tank Diameter – The largest in the SMDD range, delivering 130 m³/hr flow rate

✅ 4.34 m² Filter Area – Maximum filtration surface handles pools up to 1,040,000 litres

✅ 160mm / 6″ Flange Connections – Industrial-grade fittings for ultra-high-flow systems

✅ 1200mm Deep Media Bed – Superior in-depth filtration captures finer particles and extends filter runs

✅ Over 8 Tonnes Media Capacity – Exceptional dirt-holding capacity for extended filter cycles

✅ Advanced Bobbin Wound Construction – Seamless fibreglass vessel with outstanding structural integrity

✅ 4 Bar Pressure Rating – Engineered for demanding commercial and industrial system pressures

✅ Fishtail Lateral System – Waterco’s patented design eliminates dead spots and maximises efficiency

✅ Double Yoke Lid with Lifting Eye – Safe handling during installation and maintenance

✅ Service Hatch & 8-Bolt Flanges – Standard equipment for easy access and secure connections

✅ Large Clear Sight Glass – Visual backwash monitoring for optimal media cleaning

✅ Corrosion & UV Resistant – Premium fibreglass withstands chemicals and outdoor exposure

📊 Technical Specifications

Specification	Value
Model	SMDD 2350
Filter Type	Commercial Sand/Media Filter (Tank Only)
Tank Diameter	2350 mm
Filter Bed Depth	1200 mm
Filter Area	4.34 m²
Flow Rate	130 m³/hr (at 30 m³/hr/m²)
Working Pressure	4 Bar (58 psi)
Maximum Working Temperature	50°C
Connection Size	6″ / 160 mm (Flange)
Sand Media Capacity	8480 kg
Glass Media Capacity	6970 kg
Gravel Capacity	1272 kg (if using support layer)
Tank Height (Overall)	2725 mm
Tank Width	2564 mm
Empty Weight	Approximately 1352 kg
Tank Material	Fibreglass Reinforced Polyester (Bobbin Wound)
Lateral System	Fishtail Configuration
Warranty	10 years tank (5 years full + 5 years pro rata), 1 year components

📍 Pool Sizing Guide

Sizing Principle:

The filter’s flow rate should achieve complete pool water turnover within the required timeframe. World-class facilities and international venues require faster turnover rates to maintain water quality under extreme bather loads.

Formula:

Required Flow Rate (m³/h) = Pool Volume (m³) ÷ Turnover Time (hours)

Pool Capacity Compatibility:

Application	Turnover Time	Maximum Pool Volume
🏢 Commercial (High Load)	4 hours	520,000 litres
🏢 Commercial (Standard)	6 hours	780,000 litres
🏨 Major International Resort	6-8 hours	780,000-1,040,000 litres
🏆 Olympic/World Championship Venue	4-6 hours	520,000-780,000 litres
🌊 Major International Water Park	4 hours	520,000 litres
🏫 Large Municipal Centre	4-6 hours	520,000-780,000 litres

This Filter:

📍 Flow Rate: 130 m³/hr at design velocity
📍 Optimal Pool Size: Up to 780,000 litres (6-hour turnover)
📍 Maximum Pool Size: Up to 1,040,000 litres (8-hour turnover)

💡 Tip: The SMDD 2350 delivers 400% greater capacity than the SMDD 1050 and 38% more than the SMDD 2000. As the ultimate model in the SMDD range, it represents the maximum single-vessel deep bed filtration solution available. For Olympic-sized pools (2,500,000 litres), just 2-3 SMDD 2350 units operating in parallel provide complete coverage – fewer units than any other configuration.

🔌 Installation Requirements

Plumbing Specifications

Requirement	Specification
Inlet Connection	160 mm / 6″ Flange
Outlet Connection	160 mm / 6″ Flange
Connection Type	8-Bolt Flange
Filter Configuration	Side Mount

Physical Installation

Requirement	Details
Base	Heavy-duty reinforced concrete pad required (filled weight 10,000+ kg)
Clearance Above	Minimum 1000 mm for lid removal and media access
Clearance Around	Minimum 1500 mm for valve operation and maintenance
Access	Service hatch for media inspection and replacement
Lifting Equipment	Heavy lifting equipment required – 1352 kg empty weight
Floor Loading	Structural engineer assessment essential before installation
Doorway/Access	Verify access route can accommodate 2.35m diameter vessel

Pump Compatibility

⚠️ Important: Filter must be matched with appropriate industrial pumps rated for 6″ pipework.

• Recommended Pump Flow Rate: 110 – 130 m³/hr
• Maximum Flow Rate: Do not exceed 130 m³/hr to prevent media migration
• Minimum Flow Rate: Ensure adequate velocity for proper filtration
• Connection: 160mm / 6″ to match filter flanges

💡 Note: This is a tank-only product. Multiport valves, face pipework kits, and pumps are sold separately. The 6″ connection size requires appropriately rated industrial valve systems. Contact Parts4Tubs for compatible valve and pipework options.

🛠️ Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Procedure
Check pressure gauge	Daily	Record baseline and monitor for increases
Visual inspection	Weekly	Check for leaks, unusual sounds, pressure anomalies
Backwash	When pressure rises 0.5-0.7 bar above clean baseline	Until sight glass runs clear
Rinse after backwash	After each backwash	Run for 120-180 seconds to settle media
Inspect sight glass	Monthly	Clean if visibility reduced
Check O-rings and seals	Quarterly	Replace if worn or damaged
Inspect media level	Annually	Top up if below recommended level
Full media replacement	Every 5-7 years (sand) or 10+ years (glass)	Replace completely

Pressure Gauge Guide

📊 Clean Filter Baseline: Establish after fresh media installation
📊 Backwash Trigger: 0.5-0.7 bar above baseline
📊 Maximum Operating Pressure: 4 bar

⚠️ Warning: Never operate above rated pressure. If pressure remains high after backwashing, inspect for blockages or media issues.

Backwash Considerations

Due to the extraordinary media capacity (over 8 tonnes of sand), backwash operations will consume very significant water volume. Ensure:

• Industrial-capacity backwash drainage for very high-volume discharge
• Sufficient water supply for extended rinse cycle
• Compliance with local discharge regulations
• Backwash water treatment if required by local authority
• Adequate balance tank capacity for high-volume operations
• Backwash water recovery systems strongly recommended for sustainability and cost reduction

Winterisation (UK Climate)

For outdoor installations or extended shutdown periods:

1. Isolate pump and close all valves
2. Set multiport valve to “Waste” position
3. Open manual drain and allow tank to empty completely
4. Remove drain plug and store safely
5. Open all connections to prevent trapped water
6. Cover or protect from direct weather exposure
7. Never leave water in filter during freezing conditions

🪨 Filter Media Information

Compatible Media Types

Media Type	Filtration Rating	Capacity Required	Lifespan	Key Benefits
Silica Sand	20-40 microns	8395 kg	5-7 years	Economical, widely available, proven performance
Glass Media	5-15 microns	6901 kg	10+ years	Finer filtration, reduced backwash frequency, longer life
ZeoSand/Zeolite	3-5 microns	As specified	5 years	Superior clarity, ammonia removal properties
AFM (Activated Filter Media)	1-5 microns	As specified	10+ years	Bio-resistant, self-sterilising, exceptional clarity

Standard Media Configuration:

• Sand Capacity: 8395 kg (16/30 grade silica sand) – over 8 tonnes
• Glass Media Capacity: 6901 kg – nearly 7 tonnes
• Support Gravel: 1259 kg (deduct from sand capacity if used)

💡 Recommendation: For world-class facilities with extreme bather loads, glass media or AFM delivers superior water clarity, significantly reduces chemical consumption, and extends service intervals. The investment in premium media provides excellent return through reduced operating costs and enhanced water quality at this scale.

Signs Media Needs Replacing

• Persistent poor water clarity despite correct chemical balance
• Shortened filter cycles between backwashes
• Media visible in pool return water
• Channelling or uneven flow distribution
• Excessive pressure drop or abnormally low resistance

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🔬 Filtration Performance

Metric	Value
Filter Area	4.34 m²
Design Flow Rate	130 m³/hr
Design Velocity	30 m³/hr/m²
Bed Depth	1200 mm (deep bed design)

Filtration Rating by Media Type

Media	Filtration Rating	What It Captures
Sand (standard)	20-40 microns	Visible debris, leaves, hair, large particles
Glass media	5-15 microns	Fine particles, most algae, improved clarity
AFM/Zeolite	1-5 microns	Very fine particles, colloidal matter, exceptional clarity

Deep Bed Advantage

The 1200mm media bed depth provides significant advantages over standard high-rate filters:

• Enhanced Particle Capture: Finer dirt particles and colloidal substances are trapped more effectively throughout the deeper media bed
• Increased Dirt Capacity: Substantially longer filter runs between backwashes, reducing water and chemical consumption
• Multi-Media Capability: Deep bed supports layered media configurations for staged filtration
• Water Treatment Applications: Suitable for granular activated carbon and speciality media for advanced water conditioning

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⚙️ Valve Positions & Functions

Note: Multiport valve sold separately – 6″ rated industrial valve required

Position	Function
Filter	Normal filtration mode – water flows through media bed
Backwash	Reverse flow to clean media – directs debris to waste
Rinse	Settles media after backwash – brief forward flow to waste
Waste	Bypass filter – pump directly to drain (lowering water level)
Recirculate	Bypass filter – return to pool without filtration
Closed	Stop all flow – isolate filter from system

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🎯 Ideal Applications

Application	Suitability	Notes
🏆 Olympic & World Championship Venues	✅ Excellent	Ultimate capacity for international standard facilities
🌊 Major International Water Parks	✅ Excellent	Maximum flow handles the largest attractions
🏢 Large Municipal Leisure Centres	✅ Excellent	Built for institutional-grade reliability at maximum scale
🏫 University & National Aquatic Centres	✅ Excellent	Handles the highest usage levels
🏨 Major International Resort Complexes	✅ Excellent	Reliable performance for large multi-pool hospitality
🏭 Industrial Water Treatment	✅ Excellent	Maximum capacity for high-volume process water
🐠 Major Public Aquariums	✅ Excellent	Deep bed supports biological filtration requirements

❓ Frequently Asked Questions

Q: What size pool will this filter handle?

A: The SMDD 2350 is suitable for commercial pools up to 780,000 litres with a 6-hour turnover, or up to 1,040,000 litres with an 8-hour turnover. For Olympic-sized pools (2,500,000 litres), just 2-3 filters operating in parallel provide complete coverage.

Q: Is this the largest SMDD model available?

A: Yes, the SMDD 2350 is the ultimate model in the entire SMDD range, offering the maximum single-vessel filtration capacity available in Waterco’s deep bed commercial filter line.

Q: How does this compare to the other SMDD models?

A: The SMDD 2350 offers 400% more filter area than the SMDD 1050 and 38% more than the SMDD 2000. It requires fewer units in parallel for large installations, reducing complexity and maintenance.

Q: How much media does this filter require?

A: The filter requires 8395 kg of sand (over 8 tonnes) or 6901 kg of glass media (nearly 7 tonnes). This extraordinary capacity enables the longest filter runs and exceptional dirt-holding capacity.

Q: How often do I need to backwash?

A: Backwash when the pressure gauge reads 0.5-0.7 bar above the clean filter baseline. Due to the exceptional media capacity, filter runs between backwashes are typically longer than smaller models.

Q: Is this a complete filter system?

A: No, this is a tank-only product. You will need to purchase a 6-inch rated multiport valve, face pipework kit, and compatible industrial pump separately. Contact Parts4Tubs for complete system specifications.

Q: What warranty is included?

A: Waterco provides a 10-year tank warranty (5 years full cover plus 5 years pro rata) and 1-year warranty on all other components.

Q: What are the structural requirements for installation?

A: The filled weight exceeds 10 tonnes. A structural engineer must assess floor loading capacity before installation. A heavy-duty reinforced concrete pad is essential. Access routes must accommodate the 2.35m diameter vessel.

Q: Can this filter be used for saltwater pools?

A: Yes, the fibreglass construction is fully resistant to saltwater and chlorinated environments.

Q: What pump do I need?

A: Match with industrial pumps delivering approximately 110-130 m³/hr at your system head pressure with 6-inch connections. Multiple pumps are typically required for redundancy in critical applications.

📥 Downloads & Resources

📄 SMDD Technical Datasheet – Full specifications and dimensions for all SMDD models

🏆 Why Choose the Waterco 2350 SMDD

✅ Ultimate Performance – 130 m³/hr flow rate handles pools up to 1,040,000 litres

✅ Maximum Filter Area – 4.34 m² provides the ultimate particle capture in the entire SMDD range

✅ Exceptional Media Capacity – Over 8 tonnes for the longest filter runs available

✅ Industrial 6-Inch Connections – Minimises pressure losses for efficient ultra-high-flow operation

✅ Fewer Units Required – Reduces complexity for Olympic-sized pool installations

✅ Superior Construction Quality – Digitally-controlled bobbin winding creates seamless vessels

✅ Deep Bed Filtration – 1200mm media depth for enhanced water clarity

✅ Long-Term Reliability – Fibreglass construction is corrosion-proof and virtually maintenance-free

✅ Comprehensive Warranty – 10-year tank warranty provides long-term peace of mind

🤝 Why Buy from Parts4Tubs

✅ UK-Based Company – Local support and expertise from pool industry specialists

✅ Fast UK Delivery – Efficient dispatch on commercial equipment orders

✅ Expert Technical Advice – Get sizing recommendations and system design guidance

✅ Competitive Pricing – Commercial-grade equipment at excellent value

✅ Full Warranty Support – We handle warranty claims directly with manufacturers

✅ Compatible Parts Available – 6″ multiport valves, pipework kits, and media available

✅ Easy Returns – 30-day returns on eligible products

💧 Summary

The Waterco 2350 SMDD Commercial Bobbin Wound Filter Tank is the ultimate model in Waterco’s acclaimed SMDD deep bed range, delivering maximum filtration capacity for Olympic venues, international water parks, major municipal leisure centres, and the world’s most demanding commercial installations up to 780,000 litres (6-hour turnover). With an exceptional 4.34 m² filter area, 130 m³/hr flow rate, and over 8 tonnes of media capacity, this filter provides unmatched throughput and the longest filter runs available in the SMDD range. Industrial 160mm (6″) connections and advanced fibreglass construction ensure decades of reliable performance. Fewer units required for Olympic-sized pools compared to smaller models, reducing system complexity. Supplied as tank only with 4 bar pressure rating. Backed by Waterco’s comprehensive 10-year tank warranty.

Order today from Parts4Tubs for fast UK delivery and expert commercial pool support.