🌊 Waterco 1050 SMDD Commercial Bobbin Wound Filter Tank – 4 Bar, 1.2 Metre Deep Bed

Superior commercial-grade filtration for large aquatic facilities and public swimming pools

💧 Product Overview

The Waterco 1050 SMDD Commercial Bobbin Wound Filter Tank represents the pinnacle of commercial water filtration engineering. Manufactured using Waterco’s advanced digitally-controlled filament winding technology, this robust 1050mm diameter filter tank delivers exceptional performance for high-volume commercial applications.

Featuring a deep 1200mm filter bed, the SMDD 1050 provides enhanced in-depth filtration and substantially increased dirt-holding capacity compared to standard high-rate filters. The deeper media bed ensures finer dirt particles and colloidal substances are trapped far more effectively, delivering crystal-clear water for public pools, aquatic centres, water parks, and large commercial installations.

Constructed from premium-grade fibreglass reinforced polyester resin with a seamless bobbin-wound finish, this filter tank is corrosion-resistant, UV-stable, and built for decades of reliable operation. The tank-only configuration provides flexibility for specifiers to pair with their preferred valve systems and pipework arrangements.

⭐ Key Features

✅ Advanced Bobbin Wound Construction – Digitally-controlled filament winding creates a seamless one-piece vessel with superior strength and consistency

✅ 1200mm Deep Filter Bed – Enhanced in-depth filtration captures finer particles than standard filters, improving water clarity

✅ 0.87 m² Filter Area – Provides 26 m³/hr flow rate at optimal 30 m³/hr/m² velocity for commercial applications

✅ 4 Bar Pressure Rating – Robust construction handles demanding commercial system pressures with confidence

✅ Fishtail Lateral Configuration – Waterco’s patented design eliminates dead spots and maximises hydraulic efficiency during filtration and backwashing

✅ Large Double Yoke Lid – Features lifting eye for safe handling during installation and maintenance

✅ Service Hatch & 8-Bolt Flange Connectors – Supplied as standard for easy media access and secure connections

✅ Large Clear Sight Glass – Monitor backwash water clarity without guesswork

✅ Corrosion & UV Resistant – Premium fibreglass construction withstands harsh chemical environments and outdoor installations

✅ Manual Drain Valve – Simplifies winterisation and maintenance procedures

✅ Large Stabilising Base – Ensures secure positioning during installation and operation

🔧 Technical Specifications

Specification	Value
Model	SMDD 1050
Filter Type	Commercial Sand/Media Filter (Tank Only)
Tank Diameter	1050 mm
Filter Bed Depth	1200 mm
Filter Area	0.87 m²
Flow Rate	26 m³/hr (at 30 m³/hr/m²)
Working Pressure	4 Bar (58 psi)
Maximum Working Temperature	50°C
Connection Size	3″ / 90 mm (Flange)
Sand Media Capacity	1665 kg
Glass Media Capacity	1386 kg
Gravel Capacity	250 kg (if using support layer)
Tank Height (Overall)	2270 mm
Tank Width	1077 mm
Empty Weight	Approximately 200 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. Commercial pools typically require faster turnover rates than residential installations to maintain water quality with higher 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	104,000 litres
🏢 Commercial (Standard)	6 hours	156,000 litres
🏨 Hotel/Resort Pool	6-8 hours	156,000-208,000 litres
🏊 Large Public Pool	4-6 hours	104,000-156,000 litres
🌊 Water Park Feature	4 hours	104,000 litres

This Filter:

📍 Flow Rate: 26 m³/hr at design velocity
📍 Optimal Pool Size: Up to 156,000 litres (6-hour turnover)
📍 Maximum Pool Size: Up to 208,000 litres (8-hour turnover)

💡 Tip: For commercial installations with high bather loads or water features, size for faster turnover times. Multiple filters can be operated in parallel for larger pools.

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⚙️ Installation Requirements

Plumbing Specifications

Requirement	Specification
Inlet Connection	90 mm / 3″ Flange
Outlet Connection	90 mm / 3″ Flange
Connection Type	8-Bolt Flange
Filter Configuration	Side Mount

Physical Installation

Requirement	Details
Base	Solid, level concrete pad required to support filled weight
Clearance Above	Minimum 500 mm for lid removal and media access
Clearance Around	Minimum 600 mm for valve operation and maintenance
Access	Service hatch for media inspection and replacement

Pump Compatibility

⚠️ Important: Filter must be matched with appropriate commercial pumps.

• Recommended Pump Flow Rate: 20 – 26 m³/hr
• Maximum Flow Rate: Do not exceed 26 m³/hr to prevent media migration
• Minimum Flow Rate: Ensure adequate velocity for proper filtration

💡 Note: This is a tank-only product. Multiport valves, face pipework kits, and pumps are sold separately. 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.

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	1665 kg	5-7 years	Economical, widely available, proven performance
Glass Media	5-15 microns	1386 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: 1665 kg (16/30 grade silica sand)
• Glass Media Capacity: 1386 kg
• Support Gravel: 250 kg (deduct from sand capacity if used)

💡 Recommendation: For commercial applications, glass media or AFM provides superior filtration performance and extended service life, reducing long-term operating 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

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🔬 Filtration Performance

Metric	Value
Filter Area	0.87 m²
Design Flow Rate	26 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
• Increased Dirt Capacity: Longer filter runs between backwashes
• Multi-Media Capability: Deep bed supports layered media configurations for staged filtration
• Water Treatment Applications: Suitable for granular activated carbon and speciality media

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🛠️ Valve Positions & Functions

Note: Multiport valve sold separately

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
🏢 Public Swimming Pools	✅ Excellent	Designed for high bather loads and continuous operation
🏨 Hotel & Resort Pools	✅ Excellent	Reliable performance for hospitality environments
🌊 Water Parks & Aquatic Centres	✅ Excellent	Handles high flow rates and demanding conditions
🏫 School & Leisure Centre Pools	✅ Excellent	Built for institutional-grade reliability
🏭 Industrial Water Treatment	✅ Excellent	Suitable for process water and cooling applications
🐠 Aquaculture & Aquariums	✅ Very Good	Deep bed ideal for biological filtration requirements
🏠 Large Residential Pools	✔️ Good	May be oversized for typical domestic installations

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❓ Frequently Asked Questions

Q: What size pool will this filter handle?

A: The SMDD 1050 is suitable for commercial pools up to 156,000 litres with a 6-hour turnover, or up to 208,000 litres with an 8-hour turnover. For high bather loads, size for faster turnover times.

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 commercial applications, this is typically every 1-2 weeks depending on bather load and pool usage.

Q: What filter media should I use?

A: The filter is compatible with sand (1665 kg), glass media (1386 kg), or speciality media like AFM or zeolite. Glass media provides finer filtration and longer service life, making it ideal for commercial installations.

Q: How long does filter media last?

A: Sand media typically lasts 5-7 years, while glass media can last 10+ years with proper maintenance. Commercial applications with higher throughput may require more frequent replacement.

Q: Is this a complete filter system?

A: No, this is a tank-only product. You will need to purchase a multiport valve, face pipework kit, and compatible pump separately. Contact Parts4Tubs for advice on 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 and conditions.

Q: Can this filter be used for saltwater pools?

A: Yes, the fibreglass construction is fully resistant to saltwater and chlorinated environments, making it suitable for both freshwater and saltwater applications.

Q: What pump do I need?

A: Match with a commercial pump delivering approximately 20-26 m³/hr at your system head pressure. Do not exceed the filter’s maximum flow rate to prevent media migration.

📥 Downloads & Resources

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

🏆 Why Choose the Waterco 1050 SMDD

✅ Commercial-Grade Performance – Engineered for demanding public pool and aquatic facility applications

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

✅ Deep Bed Filtration – 1200mm media depth captures finer particles and increases dirt-holding capacity

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

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

✅ Flexible Configuration – Tank-only supply allows specifiers to select preferred valves and pipework

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

✅ Global Track Record – Waterco filters are trusted in aquatic facilities worldwide

🤝 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 – Multiport valves, pipework kits, and media in stock

✅ Easy Returns – 30-day returns on eligible products

✨ Summary

The Waterco 1050 SMDD Commercial Bobbin Wound Filter Tank delivers professional-grade deep bed filtration for public pools, aquatic centres, hotels, and commercial installations up to 156,000 litres. Featuring advanced fibreglass construction, 1200mm media bed depth, and Waterco’s patented fishtail lateral system, this filter provides exceptional particle capture, extended service life, and reliable year-round performance. Supplied as tank only with 4 bar pressure rating and 90mm flange connections. Backed by Waterco’s 10-year tank warranty.