🌊 Pentair Triton TRT19 (TR40) 19″ Side Mount Sand Filter – Up to 86,000 Litre Pool Capacity

Superior filtration performance for pristine swimming conditions

💧 Product Overview

The Pentair Triton TRT19 (TR40) is a premium 19″ (480mm) side-mount sand filter representing over 40 years of product evolution and refinement. This industry-leading filtration system delivers crystal clear water through its innovative internal design that keeps the sand bed level, ensuring even water flow and maximum filtration efficiency.

Constructed using Pentair’s exclusive GlasLok™ process, this one-piece fibreglass-reinforced tank features a UV-resistant coating that guarantees years of dependable, corrosion-resistant service. The seamless composite construction eliminates any possibility of leakage, whilst rust and corrosion are impossible due to the advanced GRP (Glass Reinforced Plastic) materials.

With a flow rate of 8.5 m³/h, this filter is perfectly suited for residential pools up to approximately 68,000-86,000 litres, making it an excellent choice for small to medium above-ground and in-ground swimming pools. The included 6-position multiport valve provides complete control over your filtration system, whilst the transparent lid allows easy visual inspection of the filter’s interior.

✨ Key Features

✅ One-Piece Fibreglass Tank – GlasLok™ process creates a seamless, UV-resistant construction for unmatched durability and corrosion resistance

✅ 360° Swing-Away Diffuser – Unique design keeps sand bed level for optimum filtration and provides instant access to sand and internal components

✅ 6-Position Multiport Valve Included – Complete valve with Filter, Backwash, Rinse, Waste, Recirculate, and Closed positions for versatile operation

✅ Transparent Dome Lid – Easy visual inspection of filter interior simplifies maintenance checks

✅ Built-In Pressure Gauge – Monitor filter performance with lid-mounted gauge featuring manual air relief valve

✅ Automatic Air Relief System – Saves time during start-up by automatically purging trapped air

✅ Combined Sand & Water Drain – Quick and easy winterisation and servicing with single drain point

✅ Threaded Bulkhead Connectors – 50mm (2″) connections for easy installation and service

✅ All Threaded Internal Parts – Rapid and simple maintenance access

✅ 10-Year Tank Warranty – Industry-leading warranty coverage on the filter shell

🔧 Technical Specifications

Specification	Value
Filter Type	Sand Filter (Side Mount)
Model	TRT19 / TR40
Pool Capacity	Up to 68,000-86,000 litres
Flow Rate	8.5 m³/h
Filter Area	0.17 m²
Filtration Rating	20-40 microns (standard sand media)
Tank Diameter	480mm (19″)
Vertical Clearance Required	825mm (32.5″)
Media Capacity	Approximately 80 kg (#20 silica sand)
Working Pressure	Up to 3.5 bar
Maximum Pressure	3.5 bar
Maximum Temperature	50°C
Inlet/Outlet Size	50mm (2″) threaded bulkhead
Tank Material	One-piece fibreglass-reinforced GRP
Valve Type	6-position multiport (included)
Certifications	CE marked
Warranty	10 years (tank shell)

📏 Pool Sizing Guide

The foundation of effective pool filtration is ensuring your filter can turn over the entire pool volume within 6-8 hours. This maintains water clarity and proper chemical distribution.

Formula:

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

Pool Size Compatibility:

Pool Type	Volume Range	Suitability
🏊 Small above-ground	Up to 30,000 L	✅ Excellent – Ideal choice
🏊 Medium above-ground	30,000-50,000 L	✅ Excellent – Perfect match
🏊 Large above-ground	50,000-70,000 L	✅ Good – Suitable for this range
🏠 Small in-ground	Up to 50,000 L	✅ Excellent – Well suited
🏠 Medium in-ground	50,000-86,000 L	✅ Good – Within capacity
🏠 Large in-ground	86,000+ L	⚠️ Consider larger filter model

This Filter:

📍 Flow Rate: 8.5 m³/h
📍 8-hour turnover: Pools up to ~68,000 litres
📍 10-hour turnover: Pools up to ~86,000 litres
📍 12-hour turnover: Pools up to ~104,000 litres

🛠️ Installation Requirements

Plumbing Connections:

Requirement	Specification
Inlet Connection	50mm (2″) threaded
Outlet Connection	50mm (2″) threaded
Valve Position	Side mount

Physical Installation:

Requirement	Details
Base	Solid, level surface required (concrete slab or block platform recommended)
Clearance Above	Minimum 825mm for closure removal
Clearance Around	Adequate space for valve operation and maintenance
Location	Dry, well-ventilated area with easy access

Pump Compatibility:

⚠️ Filter must be matched with appropriate pump.
Recommended pump flow rate: 6.0 - 8.5 m³/h
Pump must not exceed filter's maximum flow rate of 8.5 m³/h.
Use PVC pipework and set suction pipes at slight angle to avoid air bubbles.

---

🔄 Maintenance Guide

Routine Maintenance:

Task	When	How
Check pressure gauge	Weekly	Normal operating: Note baseline after clean backwash
Backwash	When pressure rises 0.5 bar above baseline	Run until sight glass shows clear water (5-10 minutes)
Rinse after backwash	After each backwash	Run for approximately 60 seconds
Inspect seals & O-rings	Seasonally	Replace if worn, cracked or leaking
Check media level	Annually	Top up if low; maintain proper freeboard
Full media change	Every 5 years	Replace entire sand bed

Pressure Gauge Guide:

📊 Clean filter: Note baseline pressure after fresh backwash
📊 Backwash needed: 0.5 bar above baseline
📊 Maximum safe: 3.5 bar

Winterisation (UK Climate):

Protecting your filter during freezing temperatures is essential to prevent damage:

1. Shut off pump and close water supply valves
2. Set multiport valve to “Backwash” position
3. Open drain tap by rotating 180° to the left (do not fully unscrew)
4. Open the air relief/bleed valve on the closure
5. Allow filter, pump, and pipework to drain completely
6. Remove drain plug and store safely
7. Cover filter or store in frost-free location
8. Never leave water in filter during freezing conditions

---

🪨 Filter Media Information

Compatible Media Types:

Media Type	Filtration	Lifespan	Benefits
#20 Silica Sand	20-40 microns	5-7 years	Economical, proven performance
Filter Glass	10-15 microns	10+ years	Finer filtration, longer lasting, eco-friendly
ZeoSand/Zeolite	3-5 microns	5 years	Superior clarity, ammonia reduction

Media Capacity: Approximately 80 kg (use standard #20 silica sand)

💡 Pro Tip: For enhanced filtration performance, consider upgrading to glass filter media which captures finer particles and lasts significantly longer than traditional sand.

Signs Media Needs Replacing:

• Poor water clarity despite correct chemical balance
• Shortened filter cycles between backwashes
• Cloudy water returning to pool after filtration
• Sand visible in pool (indicates damaged lateral)

---

💎 Filtration Performance

Metric	Value
Filtration Rating	20-40 microns (standard sand)
Filter Area	0.17 m²

Micron Rating Guide:

Rating	What It Catches
40+ microns	Visible debris, leaves, large particles
20-40 microns	Sand, dirt, most visible particles
10-20 microns	Fine particles, some algae spores
5-10 microns	Very fine particles, most algae, pollen

💡 Note: Using glass filter media instead of sand can improve filtration down to 10-15 microns for even clearer water.

---

⚙️ Valve Positions & Functions

The included 6-position multiport valve provides complete control:

Position	Function
Filter	Normal filtration – water passes through sand bed to pool
Backwash	Reverse flow to flush out trapped debris and dirty water to waste
Rinse	Settles sand bed after backwash – run for 1 minute
Waste	Bypass filter and pump water directly to drain
Recirculate	Bypass filter but return water to pool (for chemical circulation)
Closed	Stop all water flow through filter

⚠️ Important: Never change valve position whilst the pump is running. Always switch off the pump first to prevent equipment damage.

---

🎯 Ideal Applications

Application	Pool Size	Suitability
🏠 Residential above-ground	Up to 68,000 L	✅ Excellent choice
🏠 Residential in-ground	Up to 86,000 L	✅ Well suited
🏡 Garden pools & swim spas	Up to 50,000 L	✅ Ideal
🧖 Large hot tubs/spas	Up to 10,000 L	✅ More than adequate

❓ Frequently Asked Questions

Q: What size pool will this filter handle? A: The Pentair Triton TRT19 is suitable for pools up to approximately 68,000 litres with an 8-hour turnover, or up to 86,000 litres with a 10-hour turnover. With its 8.5 m³/h flow rate, it’s perfect for small to medium residential pools.

Q: How often do I need to backwash? A: Backwash when the pressure gauge reads 0.5 bar above your clean baseline reading, typically every 1-2 weeks depending on pool usage and debris levels. Always rinse for 60 seconds after backwashing.

Q: What filter media should I use? A: The filter is designed for standard #20 silica sand with a capacity of approximately 80 kg. You can also use glass filter media or ZeoSand for improved filtration performance.

Q: How long does filter media last? A: Sand typically lasts 5-7 years before requiring replacement. Glass media can last 10+ years. Replace sooner if you notice reduced water clarity or shortened backwash cycles.

Q: What pump do I need? A: Match with a pump delivering 6.0-8.5 m³/h flow rate. Do not exceed the filter’s maximum flow rate of 8.5 m³/h. Consult Parts4Tubs for pump recommendations.

Q: Is the multiport valve included? A: Yes, this filter comes complete with a 6-position multiport valve and connections ready for installation.

Q: What warranty is included? A: Pentair provides a 10-year warranty on the tank shell from the date of production. Contact Parts4Tubs for full warranty terms and conditions.

Q: How do I winterise the filter? A: Drain the filter completely by opening the drain tap and air relief valve. Remove and store the drain plug. Never leave water in the filter during freezing conditions as this can cause damage not covered by warranty.

---

📥 Downloads & Resources

📄 Installation & User Manual (EN) – Complete installation and operating instructions (multi-language)

📄 Product Datasheet – Technical specifications and features

---

🏆 Why Choose the Pentair Triton TRT19

✅ Industry-Leading Reputation – Over 40 years of product evolution and the #1 sand filter worldwide

✅ Superior Construction – One-piece fibreglass-reinforced tank with UV-resistant GlasLok™ finish eliminates leaks and corrosion

✅ Optimum Filtration – Unique 360° diffuser design keeps sand bed level for even water flow and maximum filtration efficiency

✅ Easy Maintenance – Transparent dome, swing-away diffuser, and threaded components make servicing quick and simple

✅ Complete Package – Includes 6-position multiport valve, pressure gauge, and all necessary fittings

✅ 10-Year Tank Warranty – Industry-leading warranty provides long-term peace of mind

🤝 Why Buy From Parts4Tubs

✅ UK-based company with local expert support

✅ Fast UK delivery on all orders

✅ Expert advice from pool and spa specialists

✅ Competitive pricing with price match guarantee

✅ Full manufacturer warranty support

✅ Easy returns within 30 days

✅ Compatible filter media, pumps, and spare parts available

✅ Dedicated customer service team

✨ Summary

The Pentair Triton TRT19 (TR40) is a premium 19″ (480mm) side-mount sand filter delivering industry-leading filtration performance for pools up to 86,000 litres. Featuring Pentair’s exclusive GlasLok™ one-piece fibreglass construction, 360° swing-away diffuser, included 6-position multiport valve, and backed by a 10-year tank warranty, this filter represents the gold standard in residential pool filtration. With an 8.5 m³/h flow rate and 80 kg sand capacity, it provides crystal clear water with minimal maintenance. Order today and experience the reliability that has made Pentair Triton the world’s best-selling sand filter.