🌊 Certikin Lacron 18″ LSR Side Mount Sand Filter with 0.75HP Aquaspeed Pump Combo – Complete Pool Filtration System

Effortless pool maintenance with Britain’s most trusted pump and filter combination

💧 Product Overview

The Certikin Lacron 18″ LSR Side Mount Sand Filter paired with the 0.75HP Aquaspeed Pump represents the gold standard in residential pool filtration. With over 30 years of proven performance and more than a quarter of a million units commissioned across Britain, the Lacron Sureflow is the largest selling and most popular residential swimming pool sand filter in the UK.

This complete filtration package combines the renowned Lacron LSR side mount sand filter with Certikin’s hydraulically efficient Aquaspeed pump, providing everything you need for crystal clear pool water. The side-mounted multiport valve configuration allows servicing of the filter interior without disturbing the connecting pipework, whilst the large 230mm clear lid provides excellent visual display of water flow – particularly useful during backwashing.

The Lacron filter’s robust FRP (Fibre Reinforced Plastic) construction and the Aquaspeed’s single-piece fibreglass pump body ensure maximum durability and long service life. Ideal for small to medium residential in-ground pools, this combination is particularly well-suited to UK installations and is fully compatible with salt chlorinated pools.

✨ Key Features

✅ Complete Pump & Filter Package – Includes Lacron LSR filter tank, side-mounted 6-way multiport valve, pressure gauge, filter media (75kg sand), and Aquaspeed pump with base

✅ Side Mount Valve Configuration – Allows servicing of filter interior without disturbing connecting pipework

✅ 230mm Clear View Service Lid – Large lid on top provides easy access for inspection, maintenance, and media changes plus visual display of water flow

✅ Pressure Tested to 4 Bar (60 PSI) – Manufactured and tested to exceed normal operating requirements for long-lasting reliability

✅ Hi-Gloss Non-Corrosive GRP Construction – Glass Reinforced Polyester tank and base components resist harsh pool chemicals and UV exposure

✅ Self-Priming Aquaspeed Pump – Starts reliably without manual priming, with clear lid for easy basket inspection

✅ Salt Chlorinated Pool Compatible – Both pump and filter suitable for saltwater pool systems

✅ 316 Grade Stainless Steel Pump Shaft – Premium corrosion-resistant construction for extended service life

✅ Hydraulically Balanced Laterals – Maximises water flow and filtration efficiency during both filtration and backwashing

✅ Energy Efficient Design – Low head loss underdrain system and efficient impeller reduce operating costs

✅ Speed Style Connections – Quick installation with 2″ unions and 1.5″ reducers included

✅ Winter Drain Tap – Easy access drain for proper winterisation in UK climate

✅ CE Approved & TUV Certified – Meets European safety and quality standards

🔩 Technical Specifications

Filter Specifications

Specification	Value
Filter Type	Sand (Side Mount – LSR Sureflow)
Tank Diameter	18″ (460mm)
Tank Height	685mm
Media Capacity	75kg (Grade 16/30 silica sand)
Valve Type	6-Way Multiport (Side Mounted) with Pressure Gauge
Service Lid	230mm (9″) Clear View on Top
Design Flow Rate	8.5 m³/h
Test Pressure	4 bar (60 PSI)
Maximum Operating Pressure	2.5 bar (36 PSI)
Inlet/Outlet Size	1.5″ (38mm) Female Threaded
Tank Material	GRP (Glass Reinforced Polyester)
Filter Warranty	5 Years Tank + 1 Year Components

Pump Specifications

Specification	Value
Pump Model	Certikin Aquaspeed
Motor Power	0.75HP (0.56kW)
Flow Rate	9 m³/h at 10m head
Phase	Single Phase 240V
Motor Speed	2850 RPM
Connection Size	1.5″/2″ (supplied with 2″ unions and 1.5″ reducers)
Pump Body Material	Single-Piece Fibreglass Filled
Shaft Material	316 Grade Stainless Steel
Motor Rating	IP55 Enclosed Fan Cooled
Insulation Class	Class F with Thermal Protection
Maximum Water Temperature	50°C
Pump Warranty	2 Years (1 Year on mechanical seal and capacitor)

📏 Pool Sizing Guide

Sizing Principle: The filter flow rate should turn over the entire pool volume in 6-8 hours for optimal filtration performance.

Formula:

Pool Volume (litres) = Flow Rate (m³/h) × Turnover Time (hours) × 1000

This Combination’s Capacity

📍 Filter Design Flow Rate: 8.5 m³/h

📍 Pump Flow Rate: 9 m³/h at 10m head

📍 Optimal Pool Size (6-hour turnover): Up to 51,000 litres

📍 Maximum Pool Size (8-hour turnover): Up to 68,000 litres

Pool Size Compatibility Table

Pool Type	Volume Range	Suitability
🏠 Small in-ground	Up to 30,000 L	✅ Excellent – ample capacity
🏠 Medium in-ground	30,000 – 50,000 L	✅ Excellent – ideal match
🏠 Large in-ground	50,000 – 68,000 L	✅ Good – within design range
🏊 Above-ground	Up to 40,000 L	✅ Suitable – consider application

💡 Tip: The Lacron LSR side mount filter is ideally suited to permanent in-ground residential pools. For best water quality, choose a filter system that can turn over your pool volume in 6 hours or less.

---

🔌 Installation Requirements

Plumbing Connections

Requirement	Specification
Inlet Connection	1.5″ (38mm) Female Threaded
Outlet Connection	1.5″ (38mm) Female Threaded
Pump Unions	2″ quick connect (with 1.5″ reducers)
Valve Position	Side Mount
Service Access	230mm clear lid on top of tank

Physical Installation

Requirement	Details
Base Surface	Solid, level concrete or paving required
Clearance Above	Minimum 300mm for lid access
Clearance Around	Minimum 400mm on valve side for operation
Plant Room	Frost-free location recommended for UK climate

Key Side Mount Advantage

The side-mounted multiport valve configuration allows servicing of the filter interior (media inspection, replacement) without needing to disturb the connecting pipework. The 230mm clear lid on top provides excellent visual display of water passing through the filter – particularly useful when backwashing.

Electrical Requirements

Requirement	Details
Power Supply	Single Phase 240V
Circuit Protection	Dedicated RCD protected circuit required
Installation	Must be installed by qualified electrician

⚠️ Important: This pump and filter combination is supplied pre-matched. The pump flow rate (9 m³/h) is optimally matched to the filter’s design flow rate (8.5 m³/h) for efficient filtration.

---

🧹 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Procedure
Check pressure gauge	Weekly	Note baseline pressure when filter is clean
Empty pump strainer basket	Weekly	Remove debris to maintain flow
Backwash filter	When pressure rises 0.5 bar above baseline	Typically every 1-2 weeks
Rinse after backwash	After each backwash	Run for 30-60 seconds
Inspect pump lid O-ring	Monthly	Check for wear, lubricate if needed
Check media level	Annually	Top up if settled significantly
Full media replacement	Every 5-7 years (sand)	Replace entire media charge

Pressure Gauge Guide

📊 Clean filter baseline: Note the pressure reading when filter is freshly backwashed

📊 Backwash required: When pressure rises 0.5 bar (7 PSI) above baseline

📊 Maximum safe operating: 2.5 bar (36 PSI)

⚠️ Warning: If pressure exceeds 2.5 bar, backwash immediately. Persistent high pressure may indicate blocked laterals or worn media requiring attention.

Winterisation Procedure (UK Climate Essential)

1. Switch off pump and isolate electrical supply
2. Set multiport valve to “Winterise” or “Closed” position
3. Remove drain plugs from pump and filter
4. Drain all water from pump, filter tank, and pipework
5. Remove pump strainer basket and store dry
6. Store drain plugs safely for spring
7. Cover equipment or store in frost-free location if possible

⚠️ Critical: Never leave water in the filter or pump during freezing conditions. Ice expansion can crack pump housings and filter tanks, which is not covered under warranty.

🪨 Filter Media Information

Compatible Media Types

Media Type	Filtration Rating	Lifespan	Benefits
Silica Sand (16/30 grade)	20-40 microns	5-7 years	Economical, proven performance
Glass Media	5-15 microns	10+ years	Finer filtration, eco-friendly
Zeolite (Lacronite)	3-5 microns	5+ years	Superior clarity, reduces chloramines

Media Capacity: 75kg (3 × 25kg bags)

💡 Recommendation: For standard residential pools, 16/30 grade silica sand provides excellent performance. Upgrade to glass media for finer filtration and longer service life.

Signs Media Needs Replacing

• Poor water clarity despite correct chemical balance
• Shortened filter cycles between backwashes
• Sand particles returning to pool
• Visible channelling or clumping when inspected
• Media hardened or solidified

---

🔬 Filtration Performance

Filtration Capabilities

Metric	With Sand Media	With Glass Media
Filtration Rating	20-40 microns	5-15 microns
Particle Removal	Visible debris, algae, dirt	Fine particles, bacteria, most algae

What Different Micron Ratings Catch

Rating	Particles Captured
40+ microns	Visible debris, leaves, large insects
20-40 microns	Sand, dirt, visible particles, hair
10-20 microns	Fine particles, some algae spores
5-10 microns	Very fine particles, most algae, bacteria
Below 5 microns	Ultra-fine particles, pathogens

⚙️ Multiport Valve Positions & Functions

The 6-way multiport valve provides complete control over water flow:

Position	Function	When to Use
Filter	Normal filtration mode	Daily operation
Backwash	Reverses flow to flush debris from media	When pressure rises 0.5 bar above baseline
Rinse	Settles media and clears pipework	For 30-60 seconds after backwashing
Waste	Bypasses filter, sends water directly to drain	Vacuuming heavy debris, lowering water level
Recirculate	Bypasses filter, returns water to pool	Distributing chemicals without filtering
Closed	Stops all flow	Winterisation, pump strainer cleaning

⚠️ Important: Always switch off pump before changing valve positions to prevent damage to internal components.

---

🎯 Ideal Applications

Application	Pool Size	Suitability
🏠 Residential in-ground pools	Up to 51,000 L	✅ Excellent – primary design application
🏠 Permanent outdoor pools	Up to 51,000 L	✅ Excellent
🏠 Indoor residential pools	Up to 51,000 L	✅ Excellent
🏡 Holiday home pools	Up to 51,000 L	✅ Excellent

Best Suited For:

• Permanent in-ground residential swimming pools (the LSR’s primary design application)
• Replacement of aging pump and filter systems on existing installations
• Pools requiring salt chlorination compatibility
• UK installations requiring winterisation capability
• Pool owners who want easy maintenance access without disturbing pipework

💬 Frequently Asked Questions

Q: What size pool will this filter and pump combination handle? A: This combination is suitable for pools up to 51,000 litres with optimal 6-hour turnover, or up to 68,000 litres with 8-hour turnover. The filter’s design flow rate is 8.5 m³/h.

Q: How often do I need to backwash the filter? A: Backwash when the pressure gauge reads 0.5 bar (7 PSI) above the clean baseline reading, typically every 1-2 weeks depending on pool usage and debris levels. The clear lid on top makes it easy to observe when the water runs clear during backwashing.

Q: What filter media should I use? A: The filter is compatible with silica sand (16/30 grade), glass media, or zeolite. Sand is economical and effective; glass media provides finer filtration and longer life. The media capacity is 75kg.

Q: How long does filter media last? A: Silica sand typically lasts 5-7 years, glass media 10+ years, and zeolite approximately 5 years. Replace when water clarity diminishes despite correct chemical balance.

Q: Is this combination suitable for saltwater pools? A: Yes, both the Lacron filter and Aquaspeed pump are fully compatible with salt chlorinated pool systems.

Q: Why choose a side mount filter over top mount? A: The side mount configuration allows you to service the filter interior and change media without disturbing the connecting pipework. The large clear lid on top also provides a visual display of water flow during operation.

Q: What warranty is included? A: The filter tank carries a 5-year warranty with 1-year warranty on components. The pump has a 2-year warranty with 1 year on mechanical seal and capacitor. Contact Parts4Tubs for full warranty terms.

Q: Can I install this myself? A: The plumbing can be undertaken by competent DIY enthusiasts, however the electrical connection must be completed by a qualified electrician. We recommend professional installation for warranty purposes.

Q: How do I winterise the system in the UK? A: Drain all water from the pump, filter, and pipework. Remove and store drain plugs. Never leave water in the system during freezing conditions as ice damage is not covered by warranty.

Q: Is the filter media included? A: Yes, this combination includes 75kg of filter media (sand).

🌟 Why Choose the Lacron LSR & Aquaspeed Combination

✅ Britain’s Best-Selling Sand Filter – Over 30 years of proven performance with more than 250,000 installations

✅ Side Mount Convenience – Service filter interior and change media without disturbing pipework

✅ Clear View Lid – 230mm clear lid allows visual inspection of water flow and backwashing progress

✅ Premium Build Quality – GRP filter tank and single-piece fibreglass pump body for exceptional durability

✅ Perfectly Matched Components – Pump flow rate optimally paired to filter capacity for efficient operation

✅ Salt Chlorinator Compatible – Both components designed for modern saltwater pool systems

✅ Energy Efficient Operation – Hydraulically balanced laterals and efficient impeller minimise running costs

✅ Comprehensive Warranty – 5-year tank warranty plus full manufacturer backing on pump

✅ Extensive Spare Parts Availability – All components readily available for long-term serviceability

✅ UK Climate Ready – Designed with winterisation features essential for British pools

🤝 Why Buy From Parts4Tubs

✅ UK-based company with expert local support

✅ Fast UK delivery with secure packaging

✅ Specialist pool equipment advice from experienced staff

✅ Competitive pricing with price match guarantee

✅ Full manufacturer warranty support

✅ Easy returns within 30 days

✅ Compatible filter media and spare parts available

✅ Technical support for installation queries

💧 Summary

The Certikin Lacron 18″ LSR Side Mount Sand Filter with 0.75HP Aquaspeed Pump combination delivers professional-grade filtration for residential in-ground pools up to 51,000 litres. Featuring Britain’s most trusted sand filter brand with convenient side-mounted valve configuration, paired with an energy-efficient self-priming pump, this complete package offers exceptional water clarity, low maintenance requirements, and proven long-term reliability. The side mount design allows easy media access without disturbing pipework, whilst the clear view lid makes backwashing simple. With salt chlorination compatibility, UK winterisation features, and comprehensive warranty coverage, this combination represents outstanding value for pool owners seeking dependable performance season after season.

Order today and enjoy crystal clear pool water with minimal effort.