💧 PPG Filter Top 400 V6 Sand Filter – 31,000 Litre Pool Capacity

Superior filtration performance for sparkling clean water, season after season

📋 Product Overview

The PPG Filter Top 400 V6 is a premium top-mount sand filter engineered for residential swimming pools requiring reliable, efficient filtration. Manufactured by Pollet Pool Group, this compact yet powerful filter features a two-part polyester-reinforced tank in a modern white finish, designed to withstand the demands of continuous pool operation.

With a flow rate of 3.9 m³/h at standard filtration velocity, this filter comfortably handles pools up to 31,000 litres when operating on an 8-hour turnover cycle. The included Praher 6-way multiport valve provides complete control over all filtration functions, from standard filtering to backwashing and rinsing, all operated via a single, intuitive handle. The innovative folding diffuser simplifies media loading and interior access, making maintenance straightforward for pool owners.

Built for UK conditions with a maximum working pressure of 2.5 bar and backed by an impressive 5-year tank warranty, the PPG Filter Top 400 delivers professional-grade filtration at an accessible price point.

✨ Key Features

✅ Polyester-Reinforced Tank – Two-part construction in durable polyester ensures long-lasting performance and resistance to UV degradation and pool chemicals

✅ Praher 6-Way Multiport Valve – Premium Austrian-engineered valve provides precise control across all filtration modes including filter, backwash, rinse, waste, recirculate, and closed positions

✅ 3.9 m³/h Flow Rate – Optimal filtration velocity at 30 m³/h/m² ensures thorough water treatment for pools up to 31,000 litres

✅ Folding Diffuser Design – Innovative hinged diffuser facilitates easy media loading and provides convenient access to interior components

✅ Integrated Venting System – Built-in air vent inside the filter pipes eliminates trapped air for consistent, efficient filtration performance

✅ 50 kg Sand Capacity – Generous media capacity delivers extended filtration cycles between backwashing

✅ 1½” Connections – Standard female threaded connections ensure compatibility with most residential pool pump systems

✅ Compact 400 mm Diameter – Space-efficient design ideal for installations where equipment room space is limited

✅ 2.5 Bar Working Pressure – Robust pressure rating suitable for all standard residential pool configurations

✅ 5-Year Tank Warranty – Comprehensive manufacturer warranty provides peace of mind and protection for your investment

🔩 Technical Specifications

Specification	Value
Filter Type	Top-Mount Sand Filter
Pool Capacity	Up to 31,200 litres (8-hour turnover)
Optimal Pool Size	Up to 23,400 litres (6-hour turnover)
Flow Rate (Filtration)	3.9 m³/h at 30 m³/h/m²
Flow Rate (Backwash)	6.5 m³/h at 50 m³/h/m²
Filter Area	0.13 m²
Filtration Rating	20-40 microns (with sand media)
Tank Diameter	400 mm
Tank Height	775 mm
Sand Capacity	50 kg
Gravel Capacity	40 kg
Working Pressure	2.5 bar (maximum)
Testing Pressure	3.75 bar
Inlet/Outlet Size	1½” Female Thread (F)
Tank Material	Polyester reinforced (two-part construction)
Tank Colour	White
Valve Type	Praher 6-way multiport (manual)
Weight (Empty)	12.5 kg
Warranty	5 years (tank)
SKU	1564254040

📏 Pool Sizing Guide

Sizing Principle: The filter’s flow rate should be capable of turning over the entire pool volume within 6-8 hours for optimal water clarity and hygiene.

Formula:

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

PPG Filter Top 400 Sizing:

Turnover Time	Pool Capacity	Water Quality
6 hours (optimal)	23,400 litres	Crystal clear – recommended for best results
7 hours	27,300 litres	Excellent clarity
8 hours (maximum)	31,200 litres	Good clarity – maximum recommended capacity

Pool Size Compatibility:

Pool Type	Volume Range	Suitability
🏊 Small above-ground	Up to 15,000 L	✅ Excellent – provides rapid turnover
🏊 Medium above-ground	15,000-25,000 L	✅ Ideal – optimal performance range
🏊 Large above-ground	25,000-31,000 L	✅ Good – operates at designed capacity
🏠 Small in-ground	Up to 20,000 L	✅ Excellent – generous filtration capacity
🏠 Medium in-ground	20,000-31,000 L	✅ Good – suitable at maximum capacity
🏠 Large in-ground	31,000+ L	❌ Consider PPG Filter Top 510 or larger

This Filter:

📍 Flow Rate: 3.9 m³/h (filtration mode)
📍 Backwash Rate: 6.5 m³/h
📍 Optimal for pools: Up to 23,400 litres
📍 Maximum for pools: Up to 31,200 litres

🛠️ Installation Requirements

Plumbing Connections:

Requirement	Specification
Inlet Connection	1½” Female Thread
Outlet Connection	1½” Female Thread
Valve Position	Top mount
Valve Type	6-way multiport (Praher)

Physical Installation:

Requirement	Details
Base	Solid, level concrete pad or paving slab required
Clearance above	Minimum 500 mm for valve operation and media loading
Clearance around	Minimum 300 mm on all sides for plumbing and maintenance access
Location	Weather-protected area or dedicated plant room recommended

Pump Compatibility:

⚠️ Filter must be correctly matched with an appropriate pump for optimal performance.

Recommended pump flow rate: 3.0 - 5.0 m³/h
Pump must not exceed filter's maximum flow rate of 6.5 m³/h

Note: Undersized pumps result in poor filtration; oversized pumps waste energy 
and may damage filter media.

Installation Notes:

• Allow filter tank to acclimatise to installation temperature before filling
• Ensure all pipework is fully supported and correctly aligned
• Apply PTFE tape to all threaded connections
• Prime the pump before initial operation
• Commission system with clean water before adding chemicals

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🔄 Maintenance Guide

Routine Maintenance Schedule:

Task	When	How
Check pressure gauge	Weekly	Record baseline reading; normal operating range 0.8-1.5 bar
Backwash filter	When pressure rises 0.5-0.7 bar above baseline	Typically every 1-2 weeks during swimming season
Rinse after backwash	After every backwash	Run rinse cycle for 30-60 seconds until water clears
Inspect valve o-rings	Every 3 months	Check for wear, lubricate with silicone grease
Check media level	Annually	Top up if settled below diffuser level
Full media replacement	Every 5-7 years (sand)	Replace entire sand and gravel charge

Pressure Gauge Guide:

📊 Clean filter baseline: 0.8 - 1.2 bar (typical)
📊 Backwash required: 0.5 - 0.7 bar above baseline
📊 Maximum working pressure: 2.5 bar
⚠️ If pressure exceeds 2.5 bar, stop pump immediately and investigate

Backwashing Procedure:

1. Turn off pool pump
2. Set multiport valve to BACKWASH position
3. Start pump and run until sight glass shows clear water (typically 2-3 minutes)
4. Turn off pump
5. Set valve to RINSE position
6. Start pump and run for 30-60 seconds
7. Turn off pump
8. Return valve to FILTER position
9. Resume normal filtration

Winterisation (UK Climate):

• Drain filter tank completely via the drain plug
• Remove and store the drain plug separately in a dry location
• Set multiport valve to WINTERISE position (if available) or between two positions
• Cover filter or relocate to frost-free storage
• Never leave water in filter tank during freezing conditions – ice expansion can crack the tank
• Disconnect pump and drain all pipework

🪨 Filter Media Information

Compatible Media Types:

Media Type	Filtration	Lifespan	Benefits
Silica Sand	20-40 microns	5-7 years	Economical, widely available, proven performance
Glass Media	5-15 microns	10+ years	Finer filtration, eco-friendly, longer lasting
ZeoSand/Zeolite	3-5 microns	5 years	Superior clarity, reduces chloramines
Filter Balls	5-15 microns	3-5 years	Lightweight, easy handling, less backwashing

Media Requirements for PPG Filter Top 400:

🪨 Sand Capacity: 50 kg
🪨 Gravel Support Bed: 40 kg
📍 Total Media Weight: 90 kg

Media Loading Instructions:

1. Position filter on level base
2. Fill tank approximately 1/3 with water to cushion media
3. Add gravel support bed first (40 kg) – use 3-6 mm grade
4. Level gravel bed around laterals
5. Add filter sand (50 kg) – use 0.4-0.8 mm pool-grade silica sand
6. Sand level should reach approximately 2/3 tank height
7. Top up water, close tank, and backwash for 2-3 minutes before use

Signs Media Needs Replacing:

• Poor water clarity despite correct chemical balance
• Shorter than normal filter cycles between backwashes
• Cloudy water returning to pool through return jets
• Filter channelling (water bypassing media)
• Media visible in pool or skimmer basket

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🔬 Filtration Performance

Metric	Value
Filtration Rating (Sand)	20-40 microns
Filtration Rating (Glass)	5-15 microns
Filter Area	0.13 m²
Filtration Velocity	30 m³/h/m² (standard operation)
Backwash Velocity	50 m³/h/m²

Micron Rating Guide:

Rating	What It Removes
40+ microns	Visible debris, leaves, hair, large particles
20-40 microns	Sand, dirt, most visible particles
10-20 microns	Fine particles, pollen, some algae spores
5-10 microns	Very fine particles, most algae, improved clarity
3-5 microns	Ultra-fine particles, bacteria-sized contaminants

Performance Tips:

• Sand filters become more effective as they load with debris (down to 20 microns)
• Upgrade to glass media for consistently finer filtration
• Maintain correct flow rate – excessive flow reduces filtration efficiency
• Regular backwashing maintains optimal filtration performance

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⚙️ Valve Positions & Functions

The Praher 6-way multiport valve provides six distinct operating positions:

Position	Function	When to Use
FILTER	Normal filtration – water flows through media to pool	Standard daily operation
BACKWASH	Reverse flow cleans media, waste exits to drain	When pressure gauge indicates cleaning required
RINSE	Forward flow settles media, exits to drain	Always after backwashing – prevents dirty water reaching pool
WASTE	Bypasses filter, water exits directly to drain	Lowering water level, vacuuming heavy debris
RECIRCULATE	Bypasses filter, returns directly to pool	Distributing chemicals, testing circulation without filtration
CLOSED	Stops all flow through valve	Pump maintenance, winterisation

Important Valve Operating Notes:

⚠️ ALWAYS turn pump OFF before changing valve position
⚠️ Move valve handle fully to click into position
⚠️ Never operate valve while pump is running - may damage internals
⚠️ Lubricate o-rings annually with silicone-based lubricant

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🎯 Ideal Applications

Application	Pool Size	Suitability
🏠 Residential above-ground pool	Up to 31,000 L	✅ Ideal – compact design suits above-ground installations
🏠 Residential in-ground pool	Up to 25,000 L	✅ Excellent – optimal performance for smaller in-ground pools
🏡 Garden plunge pool	Up to 20,000 L	✅ Perfect – generous capacity for quick turnover
🏠 Holiday home/rental pool	Up to 25,000 L	✅ Great – low maintenance suits occasional use
🏊 Swim spa	Up to 15,000 L	✅ Excellent – high turnover maintains water quality
🏢 Small commercial	31,000+ L	❌ Not recommended – consider PPG commercial filters

Best Suited For:

• Pool owners seeking reliable, straightforward filtration
• Installations with limited plant room space
• Budget-conscious purchasers requiring quality equipment
• First-time pool owners wanting easy maintenance
• Replacement filters for existing 400 mm diameter installations

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❓ Frequently Asked Questions

Q: What size pool will this filter handle? A: The PPG Filter Top 400 is suitable for pools up to 31,200 litres when operating on an 8-hour turnover cycle. For optimal water clarity, we recommend pools up to 23,400 litres (6-hour turnover).

Q: How often do I need to backwash? A: Backwash when the pressure gauge reads 0.5-0.7 bar above your clean filter baseline. During the swimming season, this typically means every 1-2 weeks, though frequency depends on pool usage, weather, and debris levels.

Q: What filter media should I use? A: The filter is compatible with standard pool-grade silica sand (0.4-0.8 mm), glass media, zeolite, or filter balls. Sand capacity is 50 kg with a 40 kg gravel support bed. We recommend 16-grade silica sand for economical operation or glass media for enhanced filtration.

Q: How long does filter media last? A: Silica sand typically lasts 5-7 years with proper maintenance. Glass media can last 10+ years. Replace media when water clarity diminishes despite correct chemical balance and regular backwashing.

Q: What pump do I need? A: Match with a pump delivering 3.0-5.0 m³/h for optimal filtration. The pump flow rate must not exceed 6.5 m³/h (the filter’s maximum backwash rate). Consult Parts4Tubs for pump recommendations specific to your pool.

Q: What warranty is included? A: The PPG Filter Top 400 includes a comprehensive 5-year warranty on the filter tank. Contact Parts4Tubs for full warranty terms and conditions.

Q: Is this filter suitable for saltwater pools? A: Yes, the polyester-reinforced tank and quality components are suitable for saltwater pool applications. Ensure all connections use appropriate salt-resistant fittings.

Q: How much space do I need for installation? A: Allow minimum 500 mm clearance above the filter for valve operation and media loading, plus 300 mm around all sides for plumbing and maintenance access. Total footprint is approximately 500 mm × 500 mm.

Q: Can I use this filter with an automatic pool cleaner? A: Yes, the filter is compatible with suction-side automatic cleaners. Ensure total system flow rate remains within the filter’s capacity. Pressure-side cleaners using a booster pump operate independently and don’t affect filter sizing.

Q: What’s included with the filter? A: The PPG Filter Top 400 comes complete with the filter tank, Praher 6-way multiport valve, pressure gauge connection, internal diffuser, and laterals. Filter media (sand and gravel) is not included and must be purchased separately.

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📥 Downloads & Resources

📄 Technical Specification Sheet – Complete specifications for all PPG Filter Top models

💡 Need additional documentation? Contact Parts4Tubs for installation guides, spare parts diagrams, and warranty information.

🏆 Why Choose the PPG Filter Top 400

✅ Proven Filtration Performance – 3.9 m³/h flow rate delivers reliable water clarity for pools up to 31,000 litres with industry-standard 20-40 micron filtration

✅ Premium Praher Valve – Austrian-engineered 6-way multiport valve provides smooth, reliable operation with precise position control

✅ Durable Construction – Polyester-reinforced two-part tank construction withstands years of continuous operation and UK weather conditions

✅ Easy Maintenance – Innovative folding diffuser simplifies media loading; straightforward backwashing keeps your pool pristine

✅ Compact Design – 400 mm diameter and 775 mm height fits comfortably in smaller plant rooms and above-ground pool installations

✅ Excellent Value – Professional-grade filtration at an accessible price point, backed by 5-year tank warranty

✅ Versatile Media Options – Compatible with sand, glass media, zeolite, or filter balls – choose the filtration level that suits your needs

✅ Complete Package – Arrives ready to install with multiport valve, pressure gauge port, and internal components included

🤝 Why Buy From Parts4Tubs

✅ UK-Based Company – Local support from our Northamptonshire headquarters with expert advice just a phone call away

✅ Fast UK Delivery – In-stock items dispatched promptly for rapid delivery across the UK mainland

✅ Expert Advice – Our team of pool and hot tub specialists can help with sizing, installation queries, and technical support

✅ Competitive Pricing – Quality pool equipment at fair prices, with no hidden charges

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

✅ Easy Returns – 30-day returns policy for peace of mind purchasing

✅ One-Stop Shop – Filter media, replacement parts, pumps, and chemicals all available from a single trusted supplier

✅ Secure Payment – Multiple payment options including all major cards and PayPal for your convenience

⭐ Summary

The PPG Filter Top 400 V6 delivers dependable sand filtration for residential pools up to 31,000 litres. Featuring a robust polyester-reinforced tank, premium Praher 6-way multiport valve, and innovative folding diffuser design, this compact top-mount filter combines professional performance with straightforward maintenance. Backed by a 5-year tank warranty and UK-based support from Parts4Tubs, it’s an excellent choice for pool owners seeking reliable, efficient filtration at outstanding value.

Order today and enjoy crystal-clear pool water all season long.