💧 Plastica iFlo 500 Sand Filter with 0.75hp Pump Pack – 55,000 Litre Capacity

Exceptional value filtration for above-ground and in-ground pools, engineered for reliability and whisper-quiet operation

📋 Product Overview

The Plastica iFlo 500 Sand Filter with 0.75hp Pump Pack delivers outstanding filtration performance at a highly competitive price point, making it the smart choice for pool owners seeking quality without compromise. Designed and manufactured in the UK by Plastica, this complete system combines a powerful 0.75hp self-priming pump with a robust 500mm (20″) blow-moulded sand filter, providing efficient water circulation for pools up to 55,000 litres.

What sets the iFlo apart is its exceptional reliability—with a failure rate of virtually zero, this system has earned a reputation as one of the most dependable filter pump combinations on the market. The heavy-duty air-cooled motor operates ultra-quietly, ensuring peaceful poolside enjoyment without the intrusive noise of lesser systems. The integrated 7-way multiport valve with built-in sight glass and pressure gauge provides complete control over your filtration, while union connectors enable quick servicing when needed.

Pre-mounted on a sturdy base plate with all pipework connections ready to go, the iFlo 500 offers genuinely simple installation—a significant advantage for DIY pool owners. Compatible with both sand and zeolite filter media, this versatile system represents the ideal upgrade from basic cartridge filters supplied with above-ground pools, delivering the professional-grade filtration your pool deserves at a fraction of the cost of comparable systems.

✨ Key Features

✅ Outstanding Value – Premium quality filtration at a highly competitive price, representing exceptional value for money

✅ Ultra-Quiet Operation – Heavy-duty air-cooled motor engineered for whisper-quiet performance

✅ Proven Reliability – Virtually zero failure rate delivers unparalleled dependability season after season

✅ Powerful 0.75hp Self-Priming Pump – High-performance motor with built-in thermal protection

✅ 500mm Blow-Moulded Filter Tank – Durable 20″ filter provides ample filtration capacity

✅ 9.3 m³/h Flow Rate – Suitable for pools up to 55,000 litres with proper turnover

✅ Quality 7-Way Multiport Valve – Complete filtration control with integral sight glass and pressure gauge

✅ Simple Installation – Pre-mounted on base plate with all pipework and connections included

✅ Union Connectors – Quick-release fittings for easy servicing and winterisation

✅ 50mm Connections – Standard sizing with adaptor bushes included for flexibility

✅ UK 3-Pin Plug Fitted – Ready to connect straight out of the box

✅ Oversized Strainer Basket – Large capacity reduces cleaning frequency

✅ Lid Spanner Included – Tool provided for easy pump maintenance

✅ Direct Replacement for Sta-Rite 5P2R – Drop-in upgrade for existing systems

✅ Suitable for Sand or Zeolite Media – Flexible media options for your preferences

✅ 2-Year Motor Warranty – Peace of mind from a trusted UK manufacturer

⚙️ Technical Specifications

Complete System Specifications

Specification	Value
Product Type	Sand filter and pump combination pack
Manufacturer	Plastica (UK)
Product Code	SFP500
Suitable For	Above-ground and in-ground pools
Pool Capacity	Up to 55,000 litres (55 m³)
Flow Rate	9.3 m³/h
Pump Power	0.75 hp (0.55 kW)
Filter Diameter	500 mm (20″)
Inlet/Outlet Connections	50 mm glue socket
Adaptor Bushes Included	2 x 50mm to 1.5″
Power Supply	230V / 50Hz single phase
Power Cable	Fitted with UK 3-pin plug
Base Type	Pre-mounted plastic base plate

Filter Specifications

Specification	Value
Filter Type	Top-mount sand filter
Filter Diameter	500 mm (20″)
Tank Construction	Blow-moulded polymer
Valve Type	7-way multiport
Valve Features	Integral sight glass and pressure gauge
Media Capacity	50 kg
Media Type	Sand (0.4-0.8 mm) or zeolite
Connection Size	50 mm

Pump Specifications

Specification	Value
Pump Type	Self-priming centrifugal
Power Output	0.55 kW (0.75 hp)
Flow Rate	9.3 m³/h
Motor Type	Heavy-duty air-cooled
Thermal Protection	Built-in automatic cutoff
Strainer Basket	Oversized for extended service intervals
Impeller Design	Self-priming high-load
Pump Body Material	Thermoplastic
Impeller Material	Thermoplastic with stainless steel
Connection Size	50 mm with union connectors

Warranty Information

Component	Warranty Period
Motor	2 years
Pump Seal	1 year
Filter Tank	1 year

📦 What’s Included in the Box

This complete filtration pack includes everything needed for installation:

Item	Quantity	Description
Plastic Base Plate	1	Pre-mounted platform for pump and filter
iFlo 0.75hp Pump	1	Self-priming with UK plug fitted
500mm Filter Tank	1	20″ blow-moulded sand filter
7-Way Multiport Valve	1	Top-mount with sight glass
Pressure Gauge	1	Fitted to multiport valve
Union Connectors	Set	For pump and filter connections
Pre-Plumbed Pipework	Set	Filter to pump connections
Adaptor Bushes	2	50mm to 1.5″ conversion
Pump Lid Spanner	1	For strainer basket access
Power Cable with Plug	1	UK 3-pin fitted

⚠️ Not Included: Filter media must be purchased separately. This filter requires 50kg of sand (2 x 25kg bags) or equivalent zeolite/glass media.

📐 Pool Sizing Guide

Proper filter sizing ensures your pool water is fully circulated and cleaned within the recommended 6-8 hour turnover period. The iFlo 500 with its 9.3 m³/h flow rate is designed for medium to large pools.

Sizing Formula:

Required Flow Rate (m³/h) = Pool Volume (m³) ÷ Turnover Time (hours)

Example Calculations:

Pool Volume	6-Hour Turnover	8-Hour Turnover
30,000 L (30 m³)	5.0 m³/h needed	3.75 m³/h needed
40,000 L (40 m³)	6.7 m³/h needed	5.0 m³/h needed
55,000 L (55 m³)	9.2 m³/h needed	6.9 m³/h needed
65,000 L (65 m³)	10.8 m³/h needed	8.1 m³/h needed

Pool Size Compatibility:

Pool Type	Volume Range	Suitability	Notes
🏊 Medium above-ground	25,000-40,000 L	✅ Excellent	Superior turnover with headroom
🏊 Large above-ground	40,000-55,000 L	✅ Excellent	Achieves optimal 6-hour turnover
🏊 Extra-large above-ground	55,000-70,000 L	✅ Good	Achieves 8-hour turnover
🏠 Small in-ground	25,000-40,000 L	✅ Excellent	Ideal match for smaller builds
🏠 Medium in-ground	40,000-55,000 L	✅ Excellent	Designed for this range
🏊 Intex Ultra XTR	26,000-55,000 L	✅ Perfect	Major upgrade from cartridge
🏊 Bestway Power Steel	30,000-55,000 L	✅ Ideal	Professional-grade replacement

This Filter Pack:

📍 Flow Rate: 9.3 m³/h
📍 Recommended Pool Size: Up to 55,000 litres
📍 Maximum Pool Size: Up to 70,000 litres (with extended run time)
📍 Optimal Turnover: 6-8 hours

💡 Upgrade Note: The iFlo 500 represents an ideal upgrade from the small cartridge filters typically supplied with above-ground pools. Its compact design makes it perfect where space is limited, while delivering significantly superior filtration performance.

🛠️ Installation Requirements

Pre-Installation Checklist

Before installation, ensure you have:

• [ ] Solid, level surface for base plate
• [ ] Adequate drainage area for backwash water
• [ ] 230V electrical supply within reach of cable
• [ ] 50kg filter sand (2 x 25kg bags) or alternative media
• [ ] PVC glue for permanent pipe connections (if required)
• [ ] PTFE tape for threaded connections

Plumbing Connections

Requirement	Specification
Standard Connection	50 mm glue socket
Adaptor Bushes Included	50mm to 1.5″ (2 supplied)
Valve Position	Top-mounted 7-way
Union Connectors	Included for servicing

Above-Ground Pool Connection Note: For connecting to above-ground pools, you may need to purchase additional 1.5″ male hosetails and appropriate adhesive for hose connections.

Physical Installation Requirements

Requirement	Details
Base	Solid, level surface (paving, concrete, or decking)
Location	Sheltered area with good ventilation
Clearance Above	Minimum 500 mm for valve operation
Clearance Around	Minimum 300 mm for maintenance access
Pump Position	Can be above or below water level (self-priming)

Electrical Requirements

Requirement	Specification
Supply Voltage	230V AC, 50Hz, single phase
Power Output	0.55 kW (0.75 hp)
Cable	Fitted with UK 3-pin plug
Protection	RCD protection recommended
Earthing	Must be properly earthed

🪨 Filter Media Installation

Media Requirements

The iFlo 500 filter requires 50kg of filter media:

Media Type	Quantity Required	Grain Size
Pool Filter Sand	50 kg (2 x 25kg bags)	0.4-0.8 mm
Zeolite	50 kg (2 x 25kg bags)	0.5-1.0 mm
Filter Glass	42 kg (approx.)	0.5-1.0 mm

Installation Procedure

1. Position the system – Place on level surface with valve accessible
2. Check laterals – Ensure internal distribution system is secure
3. Fill tank 1/3 with water – Protects laterals during media filling
4. Cover central pipe – Prevent sand entering standpipe
5. Add filter media – Pour evenly, avoiding damage to internals
6. Level the surface – Ensure even distribution
7. Assemble valve – Secure multiport valve to tank
8. Connect pipework – Complete all plumbing connections

Alternative Filter Media Options

Media Type	Filtration Rating	Quantity Needed	Lifespan	Benefits
Pool Sand (0.4-0.8mm)	20-40 microns	50 kg	5-7 years	Economical, proven performance
Zeolite	3-5 microns	50 kg	5 years	Superior clarity, ammonia removal
Filter Glass	5-15 microns	42 kg	10-15 years	Finer filtration, eco-friendly

💡 Zeolite Advantage: The iFlo 500 is specifically designed to work with zeolite media, which provides significantly finer filtration (3-5 microns vs 20-40 microns for sand) and actively removes ammonia from pool water.

🔬 Filtration Performance

Metric	Value
Flow Rate	9.3 m³/h
Filter Diameter	500 mm (20″)
Filtration Rating (sand)	20-40 microns
Filtration Rating (zeolite)	3-5 microns
Filtration Rating (glass)	5-15 microns

Micron Rating Guide – What Gets Captured:

Rating	Particles Removed	Visibility
100+ microns	Leaves, large debris	Clearly visible
40-100 microns	Hair, large dirt particles	Visible to eye
20-40 microns	Sand, fine dirt, suspended particles	Barely visible
5-20 microns	Fine particles, pollen, some algae	Microscopic
3-5 microns	Very fine particles, most algae, bacteria	Requires microscope

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🔄 Valve Positions & Functions

The 7-way multiport valve provides complete control over your filtration system:

Position	Function	Water Flow	When to Use
FILTER	Normal filtration	Pool → Pump → Top of filter → Through media → Bottom → Back to pool	Daily operation, standard filtration
BACKWASH	Reverse flush to clean media	Pool → Pump → Bottom of filter → Up through media → Waste	When pressure rises 0.3-0.5 bar above baseline
RINSE	Settle and clear after backwash	Pool → Pump → Top of filter → Through media → Waste	30-60 seconds after every backwash
WASTE	Bypass filter to drain	Pool → Pump → Direct to waste	Lowering water level, vacuuming heavy debris
RECIRCULATE	Bypass filter to pool	Pool → Pump → Direct back to pool	Distributing chemicals, heating circulation
CLOSED	All ports blocked	No flow	Pump maintenance, inspection
WINTER	Winterisation position	Relieves pressure	Long-term storage, frost protection

⚠️ Critical Operating Rules:

1. Always switch off the pump before changing valve positions
2. Never operate the pump with valve in between positions
3. Allow pump to fully stop before moving valve handle
4. Use the sight glass to monitor backwash progress

🧹 Maintenance Guide

Routine Maintenance Schedule

Task	Frequency	Procedure	Notes
Check pressure gauge	Weekly	Record baseline reading when clean	Normal operating range varies by installation
Empty pump strainer basket	Weekly	Switch off pump, use spanner to open lid, remove debris	Check lid O-ring condition
Backwash filter	Every 1-2 weeks	Run until sight glass clears (2-3 mins)	Monitor pressure gauge
Rinse after backwash	After every backwash	Run for 30-45 seconds	Settles media, clears pipework
Lubricate pump lid O-ring	Monthly	Apply thin coat of silicone grease	Prevents cracking and air leaks
Inspect union connections	Monthly	Check for leaks, ensure hand-tight	Do not overtighten
Inspect filter media	Annually	Check level and condition	Top up if settled significantly
Service multiport valve	Annually	Lubricate O-rings, check gaskets	Replace gaskets if worn
Full media replacement	Every 5-7 years (sand)	Empty tank, replace with fresh media	Zeolite: 5 years, Glass: 10-15 years

Pressure Gauge Guide

📊 Clean filter baseline: Record your specific reading after fresh backwash
📊 Normal operating: Up to 0.3 bar above baseline
📊 Backwash trigger: 0.3-0.5 bar above baseline
📊 Caution zone: 0.5+ bar above baseline

⚠️ If pressure doesn't return to baseline after backwash, media may need replacing.

Backwash Procedure (Step-by-Step)

1. Switch off pump – Allow to fully stop
2. Set valve to BACKWASH – Push handle down, rotate to position
3. Switch on pump – Run for 2-3 minutes
4. Monitor sight glass – Continue until water runs clear
5. Switch off pump – Allow to fully stop
6. Set valve to RINSE – Rotate handle to position
7. Switch on pump – Run for 30-45 seconds
8. Switch off pump – Allow to fully stop
9. Set valve to FILTER – Return to normal operation
10. Switch on pump – Resume filtration
11. Check pressure gauge – Should return to baseline

💡 Water Usage: Each backwash cycle uses approximately 300-400 litres of pool water. Top up as needed after backwashing.

❄️ Winterisation Guide (Essential for UK Climate)

Proper winterisation prevents frost damage and extends equipment life.

Complete Winterisation Procedure

Step 1: Final Filtration

• Run filter for 24 hours with shock chlorine dose
• Backwash and rinse thoroughly
• Allow pump to run for 5 minutes after rinse

Step 2: Drain the System

• Switch off pump and isolate electrical supply
• Set valve to WINTER position (or between two positions to relieve pressure)
• Remove drain plugs from filter tank and pump housing
• Allow all water to drain completely
• Tilt components if needed to remove trapped water

Step 3: Protect Equipment

• Store removed drain plugs safely (in strainer basket)
• Leave pump lid loose to allow air circulation
• Cover entire unit with weatherproof tarpaulin
• Ideally move to frost-free location (garage, shed)

Step 4: Pipework

• Drain all external pipework
• Disconnect union connections where possible
• Use pipe plugs or caps on open ends

Critical Winter Warnings

⚠️ Never leave water in the filter or pump during freezing conditions

• Ice expansion will crack the filter tank
• Frozen water will destroy pump seals and impeller
• Frost damage is NOT covered by warranty

🔧 Troubleshooting Guide

Common Issues and Solutions

Problem	Possible Cause	Solution
Pump won’t prime	Air leak on suction side	Check all unions and lid seal
	Strainer basket full	Clean strainer basket
	Water level too low	Top up pool water
Low flow rate	Dirty filter media	Backwash thoroughly
	Blocked strainer basket	Clean basket
	Air lock in system	Bleed air from pump lid
High pressure	Dirty filter	Backwash and rinse
	Blocked return line	Clear obstruction
Pump overheating	Blocked ventilation	Clear around motor
	Running dry	Check water level
	Thermal protection activated	Allow to cool, investigate cause
Noisy operation	Cavitation (air in water)	Check for suction air leaks
	Loose base fixings	Tighten mounting
Cloudy water	Chemical imbalance	Test and balance water
	Insufficient run time	Increase daily filtration hours
	Worn filter media	Replace sand/media

🏠 Ideal Applications

Application	Pool Size	Suitability	Notes
🏊 Wooden pool kits	25,000-55,000 L	✅ Excellent	Popular choice for Plastica wooden pools
🏊 Large above-ground pools	35,000-55,000 L	✅ Excellent	Ideal upgrade from cartridge filters
🏊 Intex Ultra XTR pools	26,000-55,000 L	✅ Perfect	Major performance improvement
🏊 Bestway Power Steel pools	30,000-55,000 L	✅ Ideal	Professional-grade filtration
🏠 Small to medium in-ground	25,000-50,000 L	✅ Excellent	Compact footprint suits tight spaces
🔄 Sta-Rite 5P2R replacement	Any	✅ Direct fit	Drop-in upgrade

Best Suited For:

• Pool owners wanting exceptional value without compromising quality
• Upgrading from undersized cartridge filtration systems
• Installations where quiet operation is important
• DIY installers seeking simple, pre-assembled systems
• Spaces where compact footprint is essential
• Replacement of aging Sta-Rite 5P2R systems

Not Recommended For:

• Pools exceeding 70,000 litres
• Commercial or public pool applications
• Installations requiring very high flow rates

❓ Frequently Asked Questions

Sizing & Compatibility

Q: What size pool will this filter handle? A: The iFlo 500 is suitable for pools up to 55,000 litres with optimal 6-8 hour turnover. With extended daily run times, it can effectively maintain pools up to 70,000 litres.

Q: Is this a good upgrade from my Intex/Bestway cartridge filter? A: Absolutely. The iFlo 500 provides vastly superior filtration compared to basic cartridge systems. You’ll notice significantly clearer water, less frequent maintenance, and more reliable operation.

Q: Can this replace my old Sta-Rite 5P2R pump? A: Yes, the iFlo pump is designed as a direct drop-in replacement for the Sta-Rite 5P2R series.

Filter Media

Q: How much filter sand do I need? A: The iFlo 500 requires 50kg of filter sand—that’s 2 x 25kg bags of 0.4-0.8mm grade pool filter sand.

Q: Can I use zeolite or glass instead of sand? A: Yes, the filter is compatible with sand, zeolite, and filter glass. Zeolite provides finer filtration (3-5 microns) and helps remove ammonia. Filter glass offers 5-15 micron filtration and lasts longer than sand.

Q: Is filter media included? A: No, filter media is sold separately. Budget for 50kg of your chosen media type.

Operation & Maintenance

Q: How often do I need to backwash? A: Typically every 1-2 weeks during the swimming season. Backwash when the pressure gauge reads 0.3-0.5 bar above your clean baseline reading.

Q: Is the pump really that quiet? A: Yes, the iFlo is renowned for its ultra-quiet operation. The heavy-duty air-cooled motor is engineered specifically for low-noise performance.

Q: Is this pump self-priming? A: Yes, the iFlo pump is fully self-priming with a high-load impeller designed specifically for swimming pool applications.

Installation

Q: How difficult is installation? A: The iFlo 500 is designed for simple installation. It arrives pre-mounted on its base plate with all filter/pump pipework connections ready. Most DIY pool owners complete installation in 2-3 hours.

Q: What connections are needed for above-ground pools? A: For connecting to above-ground pools with hose fittings, you may need to purchase additional 1.5″ male hosetails and PVC glue. The filter includes 50mm to 1.5″ adaptor bushes.

Warranty & Support

Q: What warranty is included? A: The motor carries a 2-year warranty, and the pump seal is covered for 1 year. Plastica is a UK-based manufacturer with excellent support.

Q: Where can I get spare parts? A: All spare parts are readily available from Parts4Tubs and other UK pool equipment suppliers.

📥 Downloads & Resources

📄 iFlo 500 Installation Manual – Complete installation and operating instructions

🏆 Why Choose the Plastica iFlo 500 Filter Pump Pack

✅ Exceptional Value – Premium quality at a highly competitive price point

✅ Proven Reliability – Virtually zero failure rate from a trusted UK manufacturer

✅ Ultra-Quiet Operation – Heavy-duty motor engineered for peaceful poolside enjoyment

✅ Simple Installation – Pre-assembled and pre-plumbed for easy DIY setup

✅ Compact Design – Perfect for installations where space is limited

✅ Quality 7-Way Valve – Complete filtration control with sight glass and pressure gauge

✅ Versatile Media Options – Compatible with sand, zeolite, and glass media

✅ Direct Sta-Rite Replacement – Drop-in upgrade for existing 5P2R systems

✅ UK Manufactured – Local support and readily available spare parts

✅ Self-Priming Design – Flexible installation above or below water level

✅ Thermal Protection – Built-in safety cutoff protects motor investment

✅ 2-Year Motor Warranty – Peace of mind from established manufacturer

🤝 Why Buy From Parts4Tubs

✅ UK-Based Company – Local support from pool equipment specialists who understand UK conditions

✅ Fast UK Delivery – Efficient dispatch to get your equipment to you quickly

✅ Expert Advice – Knowledgeable team available to help with sizing and technical questions

✅ Competitive Pricing – Great value on quality products

✅ Full Warranty Support – We handle warranty claims directly for hassle-free resolution

✅ Easy Returns – 30-day returns policy if the product doesn’t meet your needs

✅ Complete Range – Filter media, spare parts, chemicals, and accessories all available

💫 Summary

The Plastica iFlo 500 Sand Filter with 0.75hp Pump Pack offers exceptional value and proven reliability for pools up to 55,000 litres. Combining a powerful self-priming pump with a robust 500mm sand filter, this UK-manufactured system delivers whisper-quiet operation, simple installation, and outstanding filtration performance at a highly competitive price.

Pre-assembled on a sturdy base plate with quality 7-way multiport valve, union connectors, and UK plug fitted, the iFlo 500 represents the ideal upgrade from basic cartridge filters or replacement for aging pump systems. Simply add 50kg of filter sand (or zeolite for superior clarity) and enjoy crystal-clear pool water with minimal maintenance.

Backed by a 2-year motor warranty and Plastica’s reputation for quality, this compact yet powerful system proves that exceptional filtration doesn’t have to cost a fortune. Order today from Parts4Tubs and discover why thousands of UK pool owners trust the iFlo for reliable, quiet, and efficient pool filtration.