🌊 Lacron Sureflow LSC-48 Commercial Side Mount Sand Filter Tank – Up to 204,000 Litre Pool Capacity

Powerful commercial-grade filtration engineered for demanding light to medium commercial pool installations

💧 Product Overview

The Lacron Sureflow LSC-48 is a premium commercial side mount sand filter tank specifically designed for light to medium commercial swimming pool applications. Manufactured by Waterco under the renowned Lacron brand, this 48-inch (1200mm) diameter filter delivers an impressive 34 m³/h flow rate, making it ideal for larger commercial pools, leisure centres, hotel pools, and holiday parks requiring reliable, high-capacity filtration.

The main tank structure is crafted from extremely hard-wearing glass reinforced polyester (GRP), providing exceptional durability, corrosion resistance, and UV stability. The smooth high-gloss internal and external finish ensures optimal water flow and effortless cleaning, whilst all internal components and pipework are upgraded to the highest commercial standards for long service life and minimal maintenance requirements.

Rigorously tested to 4 bar and designed to operate at a maximum pressure of 2.5 bar, the LSC-48 represents over 35 years of Lacron engineering excellence. Supplied as a tank only unit with connecting unions and 3-inch (90mm) connections, this filter offers flexibility for integration with your preferred valve and pipework configuration.

⭐ Key Features

✅ Commercial-Grade GRP Construction – Extremely hard-wearing glass reinforced polyester tank built to withstand demanding commercial environments

✅ High Flow Capacity – 34 m³/h flow rate handles pools up to 204,000 litres with standard 6-hour turnover

✅ Large 1.13 m² Filter Area – Generous filtration surface area for efficient debris capture and extended backwash intervals

✅ 700mm Deep Filter Bed – Optimal bed depth for superior dirt retention and water clarity

✅ 675 kg Sand Capacity – Substantial media volume ensures thorough filtration and longer service cycles

✅ Smooth High-Gloss Finish – Internal and external surfaces promote free water flow and easy cleaning

✅ Corrosion and UV Resistant – Built for longevity in both indoor and outdoor installations

✅ Inflow Diffuser System – Evenly distributes water flow across the entire filter bed for uniform filtration

✅ Hydraulically Balanced Laterals – Maximises flow efficiency and ensures even water collection

✅ Pressure Tested to 4 Bar – Rigorous quality assurance with 2.5 bar maximum operating pressure

✅ 3-Inch (90mm) Connections – Commercial-grade pipework compatibility for high-volume water flow

✅ 5-Year Tank Warranty – Manufacturer confidence backed by comprehensive warranty protection

🔧 Technical Specifications

Specification	Value
Filter Type	Sand Filter (Side Mount)
Tank Diameter	1200 mm (48″)
Flow Rate	34 m³/h (at 30 m³/h/m² design velocity)
Filter Area	1.13 m²
Bed Depth	700 mm
Pool Capacity	Up to 204,000 litres (6-hour turnover)
Filtration Rating	20-40 microns (with sand media)
Sand Capacity	675 kg
Gravel Capacity	175 kg (deduct from sand weight if using)
Glass Media Capacity	525 kg
Working Pressure	Maximum 2.5 bar
Test Pressure	4 bar
Inlet/Outlet Size	90 mm (3″)
Tank Material	Glass Reinforced Polyester (GRP)
Total Height	1660 mm
Tank Height	1240 mm
Weight (Empty)	125 kg
Valve Type	Tank only – valve not included
Warranty	5 years tank / 1 year other components

Detailed Dimensions

Dimension	Measurement
A – Base Height	128 mm
B – Tank Diameter	1200 mm
C – Tank Height	1240 mm
D – Inlet Centre Height	430 mm
E – Outlet Spacing	110 mm
F – Connection Height	559 mm
G – Lateral Clearance	360 mm
H – Total Body Height	1330 mm
I – Pipe Projection	100 mm
J – Connection Size	90 mm
K – Internal Clearance	1200 mm
L – Overall Height	1660 mm
M – Upper Section	430 mm
N – Lower Section	330 mm
X – Bed Depth	700 mm

📐 Pool Sizing Guide

The Lacron LSC-48 filter’s 34 m³/h flow rate makes it suitable for a wide range of commercial pool sizes. Proper sizing ensures optimal filtration performance and water clarity.

Sizing Principle:

The filter’s flow rate should turn over the entire pool volume within the recommended turnover time. Commercial pools typically require 6-hour turnover periods for adequate filtration.

Formula:

Pool Capacity = Flow Rate × Turnover Time
Pool Capacity = 34 m³/h × 6 hours = 204 m³ = 204,000 litres

Pool Size Compatibility

Pool Type	Volume Range	Suitability
🏢 Small Commercial	Up to 100,000 L	Excellent – ample capacity with fast turnover
🏢 Medium Commercial	100,000 – 150,000 L	Ideal – optimal balance of flow and filtration
🏢 Large Commercial	150,000 – 204,000 L	Suitable – meets standard 6-hour turnover
🏨 Hotel/Resort Pool	Up to 180,000 L	Recommended – handles high bather loads
🏊 Leisure Centre	Up to 200,000 L	Appropriate – designed for demanding use

This Filter:

📍 Flow Rate: 34 m³/h
📍 Suitable for pools up to: 204,000 litres (6-hour turnover)
📍 Extended capacity: 272,000 litres (8-hour turnover)

💡 Tip: For pools with high bather loads or warmer water temperatures, consider sizing down to ensure optimal filtration performance and water clarity.

🛠️ Installation Requirements

Plumbing Connections

Requirement	Specification
Inlet Connection	90 mm (3″)
Outlet Connection	90 mm (3″)
Valve Position	Side mount configuration
Connection Type	Unions included

Physical Installation

Requirement	Details
Base	Solid, level concrete pad required
Load Bearing	Must support 800+ kg when filled
Clearance Above	Minimum 500 mm for lid access and maintenance
Clearance Around	Minimum 600 mm for servicing and pipework
Location	Frost-protected area recommended for UK climate

Valve Requirements

⚠️ Important: This product is supplied as tank only. A separate multiport valve (3-inch/90mm) is required for operation. Lacron multiport valves and face pipework kits are available separately.

Pump Compatibility

⚠️ Critical: Filter must be matched with appropriate commercial pump.

Parameter	Requirement
Recommended Pump Flow	28 – 34 m³/h
Maximum Pump Flow	Do not exceed 34 m³/h
Minimum Backwash Flow	Adequate pressure for effective media cleaning

💡 Note: Oversizing the pump will reduce filtration efficiency and may force debris through the media bed. Undersizing will result in inadequate turnover and poor water quality.

🔄 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Procedure
Check pressure gauge	Daily/Weekly	Monitor for pressure increase above baseline
Backwash filter	When pressure rises 0.7-1 bar above clean	Run until sight glass clears (typically 3-5 minutes)
Rinse after backwash	After every backwash	Run for 30-60 seconds to settle media
Inspect O-rings and seals	Seasonally	Replace if worn, cracked, or compressed
Check media level	Annually	Top up if settled below optimal level
Full media replacement	Every 5-7 years (sand)	Complete media change for optimal performance

Pressure Gauge Guide

📊 Clean Filter Baseline: Establish your baseline pressure after a fresh backwash
📊 Backwash Required: When pressure rises 0.7-1 bar above baseline
📊 Maximum Safe Pressure: 2.5 bar – do not exceed

⚠️ Warning: If pressure rises rapidly after backwashing, this may indicate channelling in the media bed, requiring media replacement or professional inspection.

Backwashing Procedure

1. Turn off the pump
2. Set multiport valve to “Backwash” position
3. Turn on the pump and run until sight glass shows clear water (3-5 minutes)
4. Turn off the pump
5. Set valve to “Rinse” position
6. Turn on pump for 30-60 seconds
7. Turn off pump and return valve to “Filter” position
8. Resume normal filtration

Winterisation (UK Climate)

For outdoor installations or unheated plant rooms, proper winterisation is essential to prevent frost damage:

• Drain filter tank completely via the drain plug
• Remove and safely store the drain plug
• Ensure all pipework is drained or protected
• Cover filter or relocate to frost-free environment if possible
• Never leave water in the filter during freezing conditions

⚠️ Frost Damage Warning: Water left in the filter tank during freezing conditions will expand and cause irreparable damage to the GRP tank structure, voiding the warranty.

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🪨 Filter Media Information

The LSC-48 is compatible with various filter media types, each offering different filtration performance characteristics.

Compatible Media Options

Media Type	Filtration Rating	Lifespan	Capacity	Benefits
Silica Sand (16/30 grade)	20-40 microns	5-7 years	675 kg	Economical, proven performance, industry standard
Glass Media	5-15 microns	10+ years	525 kg	Finer filtration, reduced backwashing, eco-friendly
Zeolite (Lacronite)	3-5 microns	5 years	See supplier	Superior clarity, ammonia reduction, enhanced water quality

Media Capacity

• Sand: 675 kg
• Gravel Support Layer: 175 kg (deduct from sand weight when using)
• Glass Media: 525 kg

💡 Tip: When using gravel support layers, deduct the gravel weight from your sand requirement. Consult your supplier for specific recommendations.

Signs Media Needs Replacing

• Poor water clarity despite correct chemical balance
• Shortened filter cycles between backwashes
• Cloudy water returning to pool after filtration
• Increased chemical consumption
• Persistent algae problems despite adequate sanitisation

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🔬 Filtration Performance

Performance Metric	Value
Filter Area	1.13 m²
Design Flow Rate	30 m³/h/m²
Maximum Flow Rate	34 m³/h
Bed Depth	700 mm
Filtration Rating (Sand)	20-40 microns
Filtration Rating (Glass)	5-15 microns

Micron Rating Explained

Rating	Particle Size	What It Captures
40+ microns	Visible to eye	Leaves, large debris, insects
20-40 microns	Fine particles	Sand, dirt, visible sediment, pollen
10-20 microns	Very fine	Fine silt, some algae spores
5-10 microns	Microscopic	Most algae, fine organic matter
3-5 microns	Ultra-fine	Bacteria, finest particles

💡 Performance Note: The LSC-48 with standard silica sand achieves 20-40 micron filtration. Upgrading to glass media or zeolite can significantly improve filtration to 5-15 microns or finer.

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⚙️ Valve Positions & Functions

When paired with a compatible 6-way multiport valve (sold separately), the following functions are available:

Position	Function	Usage
Filter	Normal filtration mode	Standard daily operation
Backwash	Reverses water flow to clean media	When pressure rises above baseline
Rinse	Settles media and clears pipework	After every backwash cycle
Waste	Bypasses filter, discharges to drain	Vacuuming debris, lowering water level
Recirculate	Bypasses filter, returns to pool	Chemical distribution, testing
Closed	Stops all water flow	Maintenance and servicing

⚠️ Always turn off the pump before changing valve positions to prevent damage to the multiport valve seal.

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🎯 Ideal Applications

The Lacron Sureflow LSC-48 is specifically engineered for light to medium commercial installations:

Application	Pool Size	Suitability
🏨 Hotel & Resort Pools	Up to 180,000 L	Excellent – handles variable bather loads
🏢 Leisure Centres	Up to 200,000 L	Ideal – designed for high-demand environments
🏫 School & College Pools	Up to 170,000 L	Recommended – reliable, low-maintenance operation
🏕️ Holiday Parks	Up to 190,000 L	Suitable – robust construction for seasonal use
🏋️ Health Club Pools	Up to 160,000 L	Optimal – commercial-grade performance
🏠 Large Private Estates	100,000+ L	Premium – exceeds domestic requirements

💡 Commercial Suitability: The LSC-48 meets the demands of light to medium commercial installations where reliable filtration and minimal downtime are essential.

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❓ Frequently Asked Questions

Q: What size pool will this filter handle?

A: The LSC-48 is suitable for commercial pools up to 204,000 litres based on a standard 6-hour turnover rate. For pools with lower bather loads, it can accommodate up to 272,000 litres with an 8-hour turnover.

Q: Is a valve included with this filter?

A: No, this product is supplied as a tank only with connecting unions. A 3-inch (90mm) multiport valve must be purchased separately. Lacron multiport valves and face pipework kits are available from Parts4Tubs.

Q: How often do I need to backwash?

A: Backwash when the pressure gauge reads 0.7-1 bar above your clean baseline reading. In commercial settings, this is typically every 1-2 weeks depending on bather load and environmental factors.

Q: What filter media should I use?

A: The LSC-48 is compatible with 16/30 grade silica sand (675 kg), glass media (525 kg), or zeolite. Sand provides reliable 20-40 micron filtration, whilst glass media offers enhanced 5-15 micron performance.

Q: How long does filter media last?

A: Silica sand typically lasts 5-7 years, glass media 10+ years, and zeolite approximately 5 years. Lifespan depends on usage, bather loads, and maintenance practices.

Q: What pump do I need?

A: Match with a commercial pump delivering 28-34 m³/h. Do not exceed the filter’s maximum flow rate of 34 m³/h. Consult Parts4Tubs for pump recommendations.

Q: What warranty is included?

A: Waterco provides a 5-year warranty on the tank and 1-year warranty on all other components. Contact Parts4Tubs for full warranty terms and conditions.

Q: Can I use this filter for a domestic pool?

A: Yes, however the LSC-48 is designed for commercial applications and would be significantly oversized for most domestic pools. Consider the smaller LSR range for residential installations.

Q: What are the installation requirements?

A: The filter requires a solid, level concrete base capable of supporting 800+ kg when filled, adequate clearance for maintenance access, frost protection for UK climate, and appropriate commercial plumbing connections.

Q: Does this filter need gravel?

A: Gravel support layers are optional but recommended for commercial installations. If using gravel (175 kg capacity), deduct this weight from the sand requirement. Consult the installation manual for specific guidance.

📥 Downloads & Resources

📄 Lacron Sureflow LSC Datasheet – Complete technical specifications

🏆 Why Choose the Lacron Sureflow LSC-48

✅ Proven Commercial Performance – Over 35 years of Lacron engineering excellence trusted by pool professionals across the UK

✅ Superior GRP Construction – Extremely durable glass reinforced polyester resists corrosion, UV damage, and chemical attack

✅ High-Capacity Filtration – 34 m³/h flow rate and 1.13 m² filter area handles demanding commercial requirements

✅ Optimal Bed Depth – 700mm media bed provides superior dirt retention and water clarity

✅ Low Maintenance Design – Hydraulically balanced laterals and inflow diffuser minimise servicing requirements

✅ Comprehensive Warranty – 5-year tank warranty demonstrates manufacturer confidence in build quality

✅ UK Technical Support – Waterco Europe based in Kent provides local expertise and spare parts availability

✅ Flexible Configuration – Tank-only supply allows integration with your preferred valve and pipework arrangement

🤝 Why Buy from Parts4Tubs

✅ UK-Based Company – Local support from our Northamptonshire headquarters

✅ Expert Advice – Knowledgeable team can assist with sizing and specification queries

✅ Fast UK Delivery – Prompt dispatch on stocked items

✅ Competitive Pricing – Trade and bulk pricing available

✅ Full Warranty Support – We handle warranty claims on your behalf

✅ Comprehensive Range – Multiport valves, pipework kits, and filter media available

✅ Spare Parts Availability – Genuine Lacron replacement components in stock

✅ After-Sales Service – Ongoing support throughout your product’s lifetime

✨ Summary

The Lacron Sureflow LSC-48 is a premium commercial-grade sand filter tank delivering exceptional 34 m³/h flow capacity for pools up to 204,000 litres. Constructed from durable glass reinforced polyester with a 1.13 m² filter area and 700mm bed depth, this filter provides the reliable, high-performance filtration demanded by commercial pool operators. Backed by a 5-year tank warranty and over 35 years of Lacron engineering heritage, the LSC-48 represents outstanding value for light to medium commercial installations. Order today from Parts4Tubs for fast UK delivery and expert support.