🌊 Certikin Vision FVS30T 28″ (710mm) Top Mount Sand Filter – 19m³/hr
Professional-Grade Fibreglass Filtration for Superior Pool Clarity, Season After Season
💧 Product Overview
The Certikin Vision FVS30T is a high-performance 28″ (710mm) top mount sand filter engineered to deliver crystal clear water for medium to large swimming pools. Manufactured using advanced bobbin-wound fibreglass technology, this robust filter combines exceptional durability with outstanding filtration performance.
Designed for pools up to 152,000 litres, the FVS30T features Certikin’s innovative clear valve mounting ring that provides a transparent view of filtration and backwashing operations in real-time. The patented 10″ lid design makes maintenance quick and effortless, whilst the hydraulically balanced lateral system ensures optimal flow characteristics during both filtration and backwash cycles.
Backed by an industry-leading 10-year tank warranty for residential installations, the Vision FVS30T represents the perfect balance of performance, reliability, and ease of use for discerning pool owners who demand the best in water quality.
⭐ Key Features
✅ 28″ (710mm) Tank Diameter – Substantial filtration capacity suitable for medium to large pools up to 152,000 litres
✅ 19m³/hr Flow Rate – High-volume water processing for efficient turnover times and rapid filtration
✅ 0.38m² Filter Area – Generous filtration surface for effective particle capture and extended filter cycles
✅ Bobbin Wound Fibreglass Construction – Latest winding technology provides exceptional strength and long-term durability
✅ Patented 10″ Lid – Quick-access design for simple servicing and media inspection without specialist tools
✅ Clear Valve Mounting Ring – Transparent viewing window allows visual monitoring of filtration and backwash performance
✅ 6-Way Multiport Valve Included – Complete with 1.5″ and 50mm quick-connect unions for versatile installation
✅ Hydraulically Balanced Laterals – Optimised water distribution maximises filtration efficiency and flow rates
✅ Automatic Internal Air Bleed – Self-venting system expels trapped air for consistent performance
✅ Integrated Pressure Gauge – Easy monitoring of filter condition for timely maintenance
✅ 10-Year Tank Warranty – Comprehensive residential warranty demonstrates manufacturer confidence in quality
✅ CE Certified – Meets European safety and quality standards for peace of mind
🔧 Technical Specifications
| Specification | Value |
|---|---|
| Model | FVS30T |
| Manufacturer | Certikin |
| Filter Type | Top Mount Sand Filter |
| Pool Capacity | Up to 152,000 litres (8-hour turnover) |
| Flow Rate | 19 m³/hr |
| Filter Area | 0.38 m² |
| Filtration Rating | 20-40 microns (with silica sand) |
| Tank Diameter | 710mm (28″) |
| Overall Height | Approximately 850mm (with valve) |
| Media Capacity | 200 kg (silica sand) |
| Maximum Working Pressure | 2.5 bar |
| Inlet/Outlet Size | 1.5″ / 50mm |
| Tank Material | Bobbin Wound Fibreglass |
| Valve Type | 6-Way Multiport (Top Mount) |
| Warranty (Tank) | 10 years (residential) |
| Warranty (Components) | 1 year |
⚠️ Important Note: Vision filters are NOT compatible with Baquacil sanitiser systems. Please use chlorine or alternative sanitisers.
📏 Pool Sizing Guide
Sizing Principle: Your filter’s flow rate should turn over your entire pool volume within 6-8 hours for optimal water clarity and hygiene.
Formula:
Required Flow Rate (m³/h) = Pool Volume (m³) ÷ Turnover Time (hours)
Pool Size Compatibility
| Pool Type | Volume Range | Suitability |
|---|---|---|
| 🏠 Medium Above-Ground | 30,000-60,000 L | Excellent – Ideal match |
| 🏠 Large Above-Ground | 60,000-90,000 L | Excellent – Comfortable capacity |
| 🏊 Small In-Ground | Up to 75,000 L | Excellent – Generous headroom |
| 🏊 Medium In-Ground | 75,000-114,000 L | Very Good – Optimal performance |
| 🏊 Large In-Ground | 114,000-152,000 L | Good – Suitable with 8-hour turnover |
This Filter’s Capacity
📍 Flow Rate: 19 m³/hr
📍 Ideal Pool Size: 60,000-114,000 litres (6-hour turnover)
📍 Maximum Pool Size: 152,000 litres (8-hour turnover)
Example Calculation:
- Pool volume: 100,000 litres (100 m³)
- With FVS30T (19 m³/hr): 100 ÷ 19 = 5.3 hours turnover ✅ Excellent
🛠️ Installation Requirements
Plumbing Specifications
| Requirement | Specification |
|---|---|
| Inlet Connection | 1.5″ / 50mm |
| Outlet Connection | 1.5″ / 50mm |
| Valve Position | Top Mount |
| Quick Connect | 1.5″ and 50mm unions included |
Physical Installation
| Requirement | Details |
|---|---|
| Base | Solid, level concrete pad or paving recommended |
| Clearance Above | Minimum 500mm for valve operation and lid access |
| Clearance Around | Minimum 300mm for maintenance access |
| Location | Below pool water level preferred for optimal priming |
Pump Compatibility
⚠️ Important: The filter must be correctly matched with an appropriate pump for optimal performance.
| Pump Specification | Recommended |
|---|---|
| Minimum Flow Rate | 12 m³/hr |
| Optimal Flow Rate | 14-19 m³/hr |
| Maximum Flow Rate | 19 m³/hr |
💡 Tip: Never exceed the filter’s maximum flow rate. An oversized pump will push particles through the sand bed, reducing filtration quality and potentially damaging the filter internals.
🔄 Maintenance Guide
Routine Maintenance Schedule
| Task | Frequency | Method |
|---|---|---|
| Check pressure gauge | Weekly | Record baseline reading; monitor for increases |
| Backwash filter | When pressure rises 0.5-0.7 bar above baseline | Backwash until sight glass runs clear (typically 2-3 minutes) |
| Rinse after backwash | After every backwash | Run on “Rinse” for 30-60 seconds to settle sand bed |
| Inspect O-rings and seals | Seasonally | Check for wear, cracks; lubricate or replace as needed |
| Check sand level | Annually | Top up if level has dropped below normal |
| Full media change | Every 5-7 years | Replace entire sand bed for optimal performance |
Pressure Gauge Guide
📊 Clean Filter Baseline: Record pressure when filter is clean (typically 0.5-1.0 bar)
📊 Backwash Required: When pressure reads 0.5-0.7 bar above baseline
📊 Maximum Safe Pressure: 2.5 bar – do not exceed
⚠️ Warning: If pressure remains high after backwashing, this may indicate channelling in the sand bed, clogged laterals, or the need for media replacement.
Winterisation (UK Climate)
For outdoor installations in the UK, proper winterisation is essential:
- Lower water level below skimmer and return fittings
- Set valve to “Winterise” position if available, or disconnect pipework
- Drain filter tank completely – remove drain plug at tank base
- Remove and store drain plug safely to prevent moisture retention
- Cover filter unit or store in frost-free location if possible
- Protect exposed pipework with lagging or drain completely
⚠️ Critical: Never leave water in the filter during freezing conditions – ice expansion can crack the tank and damage internal components.
🪨 Filter Media Information
Compatible Media Types
| Media Type | Filtration | Lifespan | Benefits |
|---|---|---|---|
| Silica Sand (#16-20) | 20-40 microns | 5-7 years | Economical, proven performance, easy to source |
| Glass Media | 5-15 microns | 10+ years | Superior clarity, reduced backwashing, eco-friendly |
| ZeoSand/Zeolite | 3-5 microns | 5 years | Exceptional particle capture, ammonia reduction |
Media Capacity
This filter requires: 200 kg of filter media
Recommended Grade: #16 or #20 silica sand (0.45-0.85mm grain size)
Signs Your Media Needs Replacing
- Poor water clarity despite correct chemical balance
- Short filter cycles between backwashes
- Cloudy water returning to pool through jets
- Visible channelling or hardening of sand bed
- Sand appearing in pool (indicates damaged laterals)
- Filter over 7 years old with original sand
💡 Tip: Consider upgrading to glass media when replacing sand – it provides finer filtration, requires less backwashing, and lasts significantly longer.
🔬 Filtration Performance
| Metric | Value |
|---|---|
| Filtration Rating | 20-40 microns (with silica sand) |
| Filter Area | 0.38 m² |
| Flow Rate | 19 m³/hr |
Micron Rating Guide
| Rating | What It Removes |
|---|---|
| 40+ microns | Visible debris: leaves, insects, large particles |
| 20-40 microns | Sand, dirt, most visible particles, hair |
| 10-20 microns | Fine particles, some algae spores |
| 5-10 microns | Very fine particles, most algae, pollen |
| Under 5 microns | Microscopic particles, bacteria (partial) |
💡 Enhancement Tip: To improve filtration below 20 microns, consider using glass media or adding a small amount of DE powder after backwashing.
⚙️ Valve Positions & Functions
The included 6-way multiport valve provides complete control over your filtration system:
| Position | Function | When to Use |
|---|---|---|
| Filter | Normal filtration mode | Day-to-day operation |
| Backwash | Reverses water flow to flush debris from sand | When pressure rises 0.5-0.7 bar above baseline |
| Rinse | Settles sand bed and clears pipework | After every backwash (30-60 seconds) |
| Waste | Bypasses filter, sends water to drain | Vacuuming heavy debris, lowering water level |
| Recirculate | Bypasses filter, returns water to pool | Distributing chemicals, clearing air from system |
| Closed | Stops all water flow | Maintenance, winterisation, pump off periods |
⚠️ Important: Always turn off the pump before changing valve positions to prevent damage to the valve seals and internal components.
🎯 Ideal Applications
| Application | Pool Size | Suitability |
|---|---|---|
| 🏠 Large Residential Above-Ground | Up to 90,000 L | Excellent |
| 🏠 Medium Residential In-Ground | 60,000-100,000 L | Excellent |
| 🏠 Large Residential In-Ground | 100,000-152,000 L | Very Good |
| 🏊 Swim Spas | Up to 30,000 L | Excellent (may be oversized) |
| 🏢 Small Commercial | Up to 100,000 L | Good (check local regulations) |
❓ Frequently Asked Questions
Q: What size pool will this filter handle?
A: The FVS30T is suitable for pools up to 152,000 litres with an 8-hour turnover, or ideally 114,000 litres for a 6-hour turnover. With a flow rate of 19 m³/hr, it’s perfect for medium to large residential pools.
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. This is typically every 1-2 weeks during the swimming season, but varies based on pool usage and environmental factors.
Q: What filter media should I use?
A: The filter is compatible with silica sand (#16-20 grade), glass media, or zeolite. Media capacity is 200 kg. Glass media offers improved filtration down to 5-15 microns and lasts longer than sand.
Q: How long does filter media last?
A: Silica sand typically lasts 5-7 years. Glass media can last 10+ years. ZeoSand/zeolite typically lasts 5 years. Replace when you notice reduced water clarity or short filter cycles despite proper backwashing.
Q: What pump do I need?
A: Match with a pump delivering 14-19 m³/hr for optimal performance. The pump should never exceed 19 m³/hr as this can force particles through the sand bed and reduce filtration quality.
Q: What warranty is included?
A: The filter comes with a 10-year full tank warranty for residential installations and a 1-year warranty on all other components including the multiport valve. Contact Parts4Tubs for full warranty terms.
Q: Can I use Baquacil with this filter?
A: No. Vision filters are NOT compatible with Baquacil sanitiser. Please use chlorine, bromine, or salt chlorinator systems.
Q: How do I know when to replace the sand?
A: Replace when you notice: consistently poor water clarity despite correct chemistry, very short filter cycles, visible channelling in the sand bed, or the sand is over 7 years old.
Q: What maintenance is required during winter?
A: Drain the filter completely, remove the drain plug, and store in a frost-free location if possible. Never leave water in the filter during freezing weather as ice expansion can crack the tank.
Q: Does the filter come with everything I need?
A: Yes, the filter includes the tank, 6-way multiport valve with 1.5″/50mm quick-connect unions, pressure gauge, and air relief valve. Filter media (sand) is sold separately.
📥 Downloads & Resources
📄 Installation & Owners Manual – Complete installation and operating instructions
📄 Product Brochure – Full specifications and technical data
🏆 Why Choose the Certikin Vision FVS30T
✅ Superior Build Quality – Bobbin wound fibreglass construction delivers exceptional strength and longevity that outlasts standard injection-moulded filters
✅ Optimal Filtration Performance – 0.38m² filter area with hydraulically balanced laterals ensures efficient particle capture and consistent water clarity
✅ Easy Maintenance – Patented 10″ lid and clear valve mounting ring make servicing quick and simple without specialist tools
✅ Perfect for Large Pools – 19 m³/hr flow rate comfortably handles pools up to 152,000 litres with efficient turnover times
✅ Outstanding Value – Professional-grade features at a competitive price point deliver excellent long-term value
✅ Industry-Leading Warranty – 10-year tank warranty for residential use demonstrates Certikin’s confidence in their product quality
✅ Trusted Brand – Certikin has been a leading UK pool equipment supplier for over 50 years, now part of the global Fluidra group
🤝 Why Buy From Parts4Tubs
✅ UK-Based Company – Local support from pool specialists who understand UK pools and climate
✅ Fast UK Delivery – Quick dispatch to get your pool running smoothly
✅ Expert Advice – Dedicated team available to help with sizing, installation, and technical queries
✅ Competitive Pricing – Great value on genuine Certikin products
✅ Full Warranty Support – We support all manufacturer warranties and handle any issues directly
✅ Easy Returns – 30-day returns policy for peace of mind purchasing
✅ One-Stop Shop – Compatible filter media, spare parts, and accessories all available
✨ Summary
The Certikin Vision FVS30T is a professional-grade 28″ top mount sand filter delivering 19 m³/hr flow rate for pools up to 152,000 litres. Featuring advanced bobbin-wound fibreglass construction, a patented 10″ quick-access lid, and innovative clear valve mounting ring for visual monitoring, this filter combines exceptional durability with outstanding ease of maintenance. Complete with a 6-way multiport valve, pressure gauge, and backed by a comprehensive 10-year residential tank warranty, the FVS30T represents the ideal choice for pool owners who demand crystal clear water and reliable, long-lasting performance. Order today from Parts4Tubs for fast UK delivery and expert support.



