💦 Waterco 1200 SMDD Commercial Bobbin Wound Filter Tank – 4 Bar, 1.2 Metre Deep Bed

Powerful deep bed filtration engineered for high-capacity commercial aquatic facilities

📋 Product Overview

The Waterco 1200 SMDD Commercial Bobbin Wound Filter Tank is a heavy-duty filtration solution designed for large-scale commercial swimming pools and aquatic facilities. With its generous 1200mm tank diameter and 1.13 m² filter area, this filter delivers an impressive 34 m³/hr flow rate, making it ideal for public pools, leisure centres, hotels, and water parks requiring substantial filtration capacity.

Manufactured using Waterco’s precision digitally-controlled filament winding technology, the SMDD 1200 features a seamless bobbin-wound fibreglass construction that provides exceptional strength, corrosion resistance, and long-term durability. The 1200mm deep media bed significantly enhances particle capture and dirt-holding capacity compared to standard high-rate filters, ensuring consistently crystal-clear water even under demanding commercial operating conditions.

Supplied as a tank-only unit with 4 bar pressure rating and 90mm flange connections, this filter offers specifiers the flexibility to configure complete systems with their preferred valve arrangements and pipework configurations.

✨ Key Features

✅ 1200mm Tank Diameter – Larger filter area delivers 34 m³/hr flow rate for high-volume commercial applications

✅ 1.13 m² Filter Area – Substantial filtration surface handles pools up to 272,000 litres

✅ 1200mm Deep Media Bed – Enhanced in-depth filtration traps finer particles and increases dirt capacity

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

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

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

✅ 90mm / 3″ Flange Connections – Professional-grade fittings optimise flow rates

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

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

✅ Large Clear Sight Glass – Visual backwash monitoring without guesswork

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

✅ Manual Drain Valve – Simplifies winterisation and service procedures

⚙️ Technical Specifications

Specification	Value
Model	SMDD 1200
Filter Type	Commercial Sand/Media Filter (Tank Only)
Tank Diameter	1200 mm
Filter Bed Depth	1200 mm
Filter Area	1.13 m²
Flow Rate	34 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	2045 kg
Glass Media Capacity	1681 kg
Gravel Capacity	307 kg (if using support layer)
Tank Height (Overall)	2243 mm
Tank Width	1229 mm
Empty Weight	Approximately 239 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 under 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	136,000 litres
🏢 Commercial (Standard)	6 hours	204,000 litres
🏨 Hotel/Resort Pool	6-8 hours	204,000-272,000 litres
🏊 Large Public Pool	4-6 hours	136,000-204,000 litres
🌊 Water Park Feature	4 hours	136,000 litres

This Filter:

📍 Flow Rate: 34 m³/hr at design velocity
📍 Optimal Pool Size: Up to 204,000 litres (6-hour turnover)
📍 Maximum Pool Size: Up to 272,000 litres (8-hour turnover)

💡 Tip: The SMDD 1200 offers approximately 30% greater capacity than the SMDD 1050, making it ideal for larger facilities or pools with higher bather loads. Multiple filters can be operated in parallel for very large installations.

🔌 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 (2500+ kg)
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: 28 – 34 m³/hr
• Maximum Flow Rate: Do not exceed 34 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.

🔄 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

💧 Filter Media Information

Compatible Media Types

Media Type	Filtration Rating	Capacity Required	Lifespan	Key Benefits
Silica Sand	20-40 microns	2045 kg	5-7 years	Economical, widely available, proven performance
Glass Media	5-15 microns	1681 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: 2045 kg (16/30 grade silica sand)
• Glass Media Capacity: 1681 kg
• Support Gravel: 307 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 despite higher initial investment.

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	1.13 m²
Design Flow Rate	34 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
🏢 Large 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
🏆 Competition & Training Pools	✅ Excellent	Superior water clarity for competitive environments
🏭 Industrial Water Treatment	✅ Excellent	Suitable for process water and cooling applications
🐠 Aquaculture & Large Aquariums	✅ Very Good	Deep bed ideal for biological filtration requirements

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❓ Frequently Asked Questions

Q: What size pool will this filter handle?

A: The SMDD 1200 is suitable for commercial pools up to 204,000 litres with a 6-hour turnover, or up to 272,000 litres with an 8-hour turnover. For high bather loads, size for faster turnover times.

Q: How does this compare to the SMDD 1050?

A: The SMDD 1200 offers approximately 30% more filter area (1.13 m² vs 0.87 m²) and 31% higher flow rate (34 m³/hr vs 26 m³/hr), making it suitable for larger pools or facilities requiring greater filtration 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. 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 (2045 kg), glass media (1681 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 28-34 m³/hr at your system head pressure. Do not exceed the filter’s maximum flow rate to prevent media migration.

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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 1200 SMDD

✅ High-Capacity Performance – 34 m³/hr flow rate handles pools up to 272,000 litres

✅ 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 1200 SMDD Commercial Bobbin Wound Filter Tank delivers high-capacity deep bed filtration for large public pools, aquatic centres, hotels, and commercial installations up to 204,000 litres (6-hour turnover). With 1.13 m² filter area, 34 m³/hr flow rate, and advanced fibreglass construction, this filter provides exceptional particle capture and long-term reliability. Supplied as tank only with 4 bar pressure rating and 90mm flange connections. Backed by Waterco’s comprehensive 10-year tank warranty.

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