🏊 Waterco 1400 SMDD Commercial Bobbin Wound Filter Tank – 4 Bar, 1.2 Metre Deep Bed

High-capacity commercial filtration with upgraded 4-inch connections for major aquatic facilities

🌊 Product Overview

The Waterco 1400 SMDD Commercial Bobbin Wound Filter Tank is a high-performance filtration solution engineered for major commercial aquatic facilities. Featuring an impressive 1400mm tank diameter and 1.54 m² filter area, this filter delivers a substantial 46 m³/hr flow rate, making it the ideal choice for large public pools, water parks, competition venues, and municipal aquatic centres.

A key advancement over smaller SMDD models, the 1400 features upgraded 110mm (4-inch) flange connections that maximise flow capacity and reduce system pressure losses. This enhanced plumbing specification supports the filter’s higher throughput while maintaining optimal filtration velocity across the generous 1200mm deep media bed.

Manufactured using Waterco’s precision digitally-controlled filament winding technology, the SMDD 1400 delivers the seamless bobbin-wound fibreglass construction that commercial operators trust for decades of reliable, maintenance-free service. The tank-only configuration with 4 bar pressure rating allows specifiers complete flexibility in valve and pipework selection.

💫 Key Features

✅ 1400mm Tank Diameter – Large filter area delivers 46 m³/hr flow rate for high-volume facilities

✅ 1.54 m² Filter Area – Substantial filtration surface handles pools up to 368,000 litres

✅ Upgraded 110mm / 4″ Connections – Enhanced flow capacity reduces system pressure losses

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

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

✅ 4 Bar Pressure Rating – Engineered for demanding commercial 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

✅ Manual Drain Valve – Simplifies winterisation and service procedures

📊 Technical Specifications

Specification	Value
Model	SMDD 1400
Filter Type	Commercial Sand/Media Filter (Tank Only)
Tank Diameter	1400 mm
Filter Bed Depth	1200 mm
Filter Area	1.54 m²
Flow Rate	46 m³/hr (at 30 m³/hr/m²)
Working Pressure	4 Bar (58 psi)
Maximum Working Temperature	50°C
Connection Size	4″ / 110 mm (Flange)
Sand Media Capacity	2840 kg
Glass Media Capacity	2334 kg
Gravel Capacity	426 kg (if using support layer)
Tank Height (Overall)	2313 mm
Tank Width	1442 mm
Empty Weight	Approximately 324 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. Large commercial pools and water parks typically require faster turnover rates to maintain water quality under high 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	184,000 litres
🏢 Commercial (Standard)	6 hours	276,000 litres
🏨 Hotel/Resort Pool	6-8 hours	276,000-368,000 litres
🏊 Large Public Pool	4-6 hours	184,000-276,000 litres
🌊 Water Park Feature	4 hours	184,000 litres
🏆 Competition Pool	4-6 hours	184,000-276,000 litres

This Filter:

📍 Flow Rate: 46 m³/hr at design velocity
📍 Optimal Pool Size: Up to 276,000 litres (6-hour turnover)
📍 Maximum Pool Size: Up to 368,000 litres (8-hour turnover)

💡 Tip: The SMDD 1400 offers 77% greater capacity than the SMDD 1050 and 35% more than the SMDD 1200, making it ideal for large municipal pools, competition venues, and water parks. Multiple filters can be operated in parallel for very large installations.

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🛠️ Installation Requirements

Plumbing Specifications

Requirement	Specification
Inlet Connection	110 mm / 4″ Flange
Outlet Connection	110 mm / 4″ Flange
Connection Type	8-Bolt Flange
Filter Configuration	Side Mount

Physical Installation

Requirement	Details
Base	Reinforced concrete pad required to support filled weight (3500+ kg)
Clearance Above	Minimum 600 mm for lid removal and media access
Clearance Around	Minimum 800 mm for valve operation and maintenance
Access	Service hatch for media inspection and replacement
Lifting Equipment	Required for installation due to 324 kg empty weight

Pump Compatibility

⚠️ Important: Filter must be matched with appropriate commercial pumps rated for 4″ pipework.

• Recommended Pump Flow Rate: 38 – 46 m³/hr
• Maximum Flow Rate: Do not exceed 46 m³/hr to prevent media migration
• Minimum Flow Rate: Ensure adequate velocity for proper filtration
• Connection: 110mm / 4″ to match filter flanges

💡 Note: This is a tank-only product. Multiport valves, face pipework kits, and pumps are sold separately. The 4″ connection size requires appropriately rated valve systems. Contact Parts4Tubs for compatible valve and pipework options.

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🔄 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 30-60 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 large media capacity (2840 kg sand), backwash operations will consume significant water volume. Ensure:

• Adequate backwash drainage capacity
• Sufficient water supply for rinse cycle
• Compliance with local discharge regulations
• Backwash water treatment if required

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 relocate to frost-free environment if possible
7. Never leave water in filter during freezing conditions

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🪨 Filter Media Information

Compatible Media Types

Media Type	Filtration Rating	Capacity Required	Lifespan	Key Benefits
Silica Sand	20-40 microns	2840 kg	5-7 years	Economical, widely available, proven performance
Glass Media	5-15 microns	2334 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: 2840 kg (16/30 grade silica sand)
• Glass Media Capacity: 2334 kg
• Support Gravel: 426 kg (deduct from sand capacity if used)

💡 Recommendation: For high-traffic commercial facilities, glass media or AFM delivers superior water clarity, reduces chemical consumption, and extends service intervals despite higher initial media costs.

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

🔬 Filtration Performance

Metric	Value
Filter Area	1.54 m²
Design Flow Rate	46 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

⚙️ Valve Positions & Functions

Note: Multiport valve sold separately – 4″ rated 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

🎯 Ideal Applications

Application	Suitability	Notes
🏢 Large Public Swimming Pools	✅ Excellent	Designed for high bather loads and continuous operation
🏆 Competition & Olympic Pools	✅ Excellent	Superior water clarity for competitive environments
🌊 Water Parks & Aquatic Centres	✅ Excellent	High flow capacity handles demanding attractions
🏫 Municipal Leisure Centres	✅ Excellent	Built for institutional-grade reliability
🏨 Large Hotel & Resort Pools	✅ Excellent	Reliable performance for hospitality environments
🏭 Industrial Water Treatment	✅ Excellent	Suitable for process water and cooling applications
🐠 Large Aquaculture & Public Aquariums	✅ Very Good	Deep bed ideal for biological filtration

❓ Frequently Asked Questions

Q: What size pool will this filter handle?

A: The SMDD 1400 is suitable for commercial pools up to 276,000 litres with a 6-hour turnover, or up to 368,000 litres with an 8-hour turnover. For high bather loads, size for faster turnover times.

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

A: The SMDD 1400 offers 77% more filter area than the SMDD 1050 and 35% more than the SMDD 1200. Crucially, it features upgraded 110mm (4″) connections versus the 90mm (3″) connections on smaller models, enabling higher flow rates with lower pressure losses.

Q: Why does this model have 4-inch connections?

A: The larger 110mm connections are essential to support the 46 m³/hr flow rate without excessive pressure losses or velocity issues. This ensures optimal filtration performance and efficient pump operation.

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. In high-traffic commercial applications, this may be every 1-2 weeks depending on bather load.

Q: What filter media should I use?

A: The filter is compatible with sand (2840 kg), glass media (2334 kg), or speciality media like AFM or zeolite. For commercial applications with high bather loads, glass media provides superior clarity and longer service life.

Q: Is this a complete filter system?

A: No, this is a tank-only product. You will need to purchase a 4-inch rated multiport valve, face pipework kit, and compatible commercial 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. Contact Parts4Tubs for full warranty terms.

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 a commercial pump delivering approximately 38-46 m³/hr at your system head pressure with 4-inch connections. Do not exceed the filter’s maximum flow rate.

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📥 Downloads & Resources

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

📄 Micron Commercial Filter Brochure – Product overview and features

📄 Commercial Filter Manual – Installation and operation guide

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✅ Why Choose the Waterco 1400 SMDD

✅ High-Capacity Performance – 46 m³/hr flow rate handles pools up to 368,000 litres

✅ Upgraded 4-Inch Connections – Enhanced flow capacity for reduced pressure losses

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

✅ Deep Bed Filtration – 1200mm media depth captures finer particles and extends filter runs

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

✅ Proven Technology – Waterco’s patented fishtail lateral system maximises hydraulic efficiency

✅ Flexible Configuration – Tank-only supply allows complete system customisation

✅ 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 – 4″ multiport valves, pipework kits, and media in stock

✅ Easy Returns – 30-day returns on eligible products

⭐ Summary

The Waterco 1400 SMDD Commercial Bobbin Wound Filter Tank delivers high-capacity deep bed filtration for major aquatic facilities, water parks, competition pools, and large commercial installations up to 276,000 litres (6-hour turnover). With 1.54 m² filter area, 46 m³/hr flow rate, and upgraded 110mm (4″) connections, this filter provides exceptional throughput for demanding applications. Advanced fibreglass construction and Waterco’s patented fishtail lateral system ensure reliable performance. 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.