Toggle Nav
0333 355 0535
My Account
Login Register Now
Shopping Cart
Advanced Search
main product photo
33% OFF

Jarvis

Catering Specialist
Reset

Hello! 👋

Hi there, I'm Jarvis! I see you're looking at the Commercial Stand Pipes | Sink Strainer | Overflow Prevention | Buffalo GC591. How can I help you with the technical specs or suitability for your business today?

Jarvis is an AI assistant and may occasionally provide incorrect details. To ensure your equipment fits and functions perfectly, we recommend verifying all critical specifications-including dimensions, power requirements, and compatibility-with our expert sales team prior to purchase.For orders or stock, call 0333 355 0535

How can we help? Choose an option below

Select an option to get started. We're here to help!

Product Questions

Specs, suitability, features & comparisons

Other Enquiries

Delivery, warranty, invoices & customer service

Product questions are answered instantly. Our support team typically responds within minutes.

Non Branded In Stock

Commercial Stand Pipes | Sink Strainer | Overflow Prevention | Buffalo GC591

SKU: GC591
£46.91 / exc vat
£56.29/ inc vat
  • Universal 70mm Flange
  • Effective Overflow Prevention
  • Built-in Sink Strainer
  • Durable Brass Back Nut

Order by 12pm

Price Match

UK Warehouse

Have a quick question about this product?
Ask instantly →
Features Overview Specifications Case Study Reviews Installation Buying Guide FAQ

Product Overview

Here’s a piece of kit that might not look glamorous, but it’s one of the hardest-working heroes in any commercial kitchen. The Buffalo GC591 Commercial Stand Pipe is your first line of defence against the daily battle with blocked drains and  overflowing sinks. It’s a brilliantly simple, universal solution designed to fit neatly into most standard commercial sinks, working silently to keep things flowing smoothly, so you can focus on the food.

Designed for the non-stop environment of restaurants, busy pubs, cafes, and  large-scale catering operations, this standpipe does two crucial jobs at once. Firstly, it acts as an incredibly effective sink strainer, catching food scraps, peelings, and  other solids before they have a chance to enter your plumbing and  cause expensive blockages. Secondly, it serves as a reliable overflow, allowing water to drain away safely even if the sink is full, preventing messy and  hazardous spills on the kitchen floor.

Featuring a durable brass back nut for a rock-solid installation and  a clever soft blue pipe that won’t damage your sink, it’s a small investment that pays for itself almost immediately. Stop worrying about costly plumber call-outs and  potential downtime. This is the simple, fit-and-forget solution that every professional kitchen needs to keep its pot wash area running without a hitch.

Key Features and  Benefits

  • Universal 70mm Flange: Fits the vast majority of commercial sinks for hassle-free installation.
  • Effective Overflow Prevention: Stops water from spilling onto the floor, improving kitchen safety.
  • Built-in Sink Strainer: Catches chunky food waste, preventing costly and  disruptive drain blockages.
  • Durable Brass Back Nut: Provides a much stronger, more reliable seal than all-plastic alternatives.
  • Soft Blue Pipe Body: Protects your stainless steel sink from scratches and  chips if dropped.
  • Standard 1.5" Waste: Connects directly to standard UK commercial plumbing with no fuss.
  • Lightweight and  Simple: Easy for any member of staff to remove, empty, and  clean in seconds.
  • Dual-Function Design: Offers both overflow protection and  waste straining in one smart unit.

Technical Specifications

  • Brand: Non Branded
  • SKU: GC591
  • Dimensions: 300(H) x 80(W) x 80(D) mm
  • External Dimensions: 360(H) x 80(W) x 80(D) mm
  • Weight: 0.47kg
  • Sink Compatibility: Fits standard 70mm flanged waste holes
  • Waste Connection: Standard 1.5 inch
  • Material: Plastic Pipe with Brass Back Nut

Expert Review and  Insights

You’d be amazed how many emergency call-outs are caused by something a simple standpipe could have prevented. The GC591 is a standout because of its brass nut – a small detail that makes a massive difference to long-term reliability. It’s a robust, no-nonsense bit of kit that solves a real, everyday problem with zero complication.

Daniel Foster – Maintenance Expert View Profile →

  • Top-Tier Build: The brass fitting offers a far more secure and  durable connection than plastic.
  • Needs Routine Checks: Its effectiveness relies entirely on staff remembering to empty it out daily.

Case Study: Real Business, Real Results

The Salty Squid, a bustling seafood restaurant in Whitby, was constantly dealing with slow-draining sinks and  the occasional overflow during their frantic weekend services. Their existing plug-hole strainers were flimsy and  inefficient, leading to frequent blockages from food prep waste.

"We were calling a plumber out what felt like every other month. It was disruptive and  expensive. We fitted these standpipes in all three of our prep sinks, and  the difference was immediate. They just work. Simple as that."

Michael Davies – Head Chef

The result was clear: The Salty Squid completely eliminated plumbing call-outs for blocked drains in the first six months, saving an estimated £400 in fees and  preventing any operational downtime.

Installation and  Maintenance Guide

Setting It Up

  • Before you start, double-check your sink's plughole has a 70mm flange opening.
  • Simply drop the standpipe unit directly into the plughole from above.
  • From underneath the sink, hand-tighten the brass back nut for a secure, water-tight seal.
  • Attach your standard 1.5" waste trap or pipe to the outlet thread. No special tools needed!

Keeping It Going

  • At the end of each day, simply lift the standpipe out of the sink to empty any collected waste into a bin.
  • Give the pipe a quick rinse under the tap to clear any remaining debris.
  • Wipe it down with a standard food-safe sanitiser as part of your regular cleaning routine.
  • Periodically check that the brass nut underneath remains snug to prevent any nuisance drips.

Buying Guide: Choosing the Right Sink Accessories

Not sure what to look for? When it comes to sink plumbing, getting the small details right prevents big headaches. Here’s what to consider.

Measure Your Sink Depth

Ensure the standpipe is tall enough. It needs to sit above the typical water level to work as an effective overflow. This 300mm model is perfect for most deep commercial sinks.

Check Your Plughole Size

The vast majority of UK commercial sinks use a standard 70mm flanged waste hole, which this model is designed for. A quick measure will confirm you’re buying the right fit.

Prioritise Material Quality

Look for durable fittings. A brass back nut, like the one on this unit, is far less likely to crack or fail over time compared to cheaper, all-plastic versions.

Match Your Waste Pipe

Confirm the outlet size matches your existing plumbing. This model's 1.5" waste is the most common standard in commercial kitchens, ensuring an easy connection.

Protect Your Investment

Small features can save money. A standpipe made from softer plastic, like this one, prevents accidental chips and  scratches to expensive stainless steel sink bowls.

See all Standpipes

Frequently Asked Questions

Q: Is this standpipe difficult to install?

A: Not at all. It's designed for a simple drop-in fit. You just need to tighten the brass nut from underneath, which can usually be done by hand.

Q: What size sink will this fit?

A: It's designed for a standard commercial sink with a 70mm flange diameter plughole and  is 300mm tall, making it suitable for most deep pot wash sinks.

Q: What does the '1.5 inch waste' mean?

A: This refers to the diameter of the pipe outlet at the bottom. It's the standard size for connecting to most commercial waste traps and  plumbing in the UK.

Q: How does it prevent overflows?

A: If the water level in the sink rises above the top of the pipe, it simply drains down the centre of the tube, preventing the water from spilling over the sides of the sink.

Q: How often should I empty the strainer?

A: For best results in a busy kitchen, it should be emptied at the end of every service or at least once a day to prevent odours and  ensure good water flow.

Q: Is the brass nut resistant to rust?

A: Yes, brass is an excellent material for wet environments as it is highly resistant to corrosion and  rust, ensuring a long and  reliable service life.

Q: Can the blue plastic get damaged by hot water?

A: The pipe is made from durable plastic designed to withstand the high temperatures typically found in commercial sink environments, including boiling water from pots.

Q: Why is this better than a simple mesh strainer?

A: While a mesh strainer only catches waste, this commercial sink stand pipe does that and  provides overflow protection, offering two vital functions in one unit.

What Customers Are Saying

"Does exactly what it's supposed to. Sturdy, fits our sink perfectly, and  the brass nut feels much more secure than the old plastic one we had. A brilliant bit of kit."

Paul W. – The Royal Oak Pub, York

"A fantastic commercial sink stand pipe. It has stopped our pot wash sink overflowing twice already during busy shifts. The blue pipe is a great idea, no more chipping the sink."

Anya Sharma – Keralan Karavan, Leicester

Add Review

The Unsung Hero of Kitchen Plumbing

In a world of high-tech combi ovens and  blast chillers, a simple piece of plastic and  brass might seem insignificant. But the true value of the GC591 isn't in its features; it's in the disasters it prevents. Every kitchen manager knows the sinking feeling of a blocked drain during peak service – it means downtime, unhappy staff, potential hygiene risks, and  an expensive emergency plumbing bill. This catering sink stand pipe is one of the most cost-effective insurance policies you can buy for your operation. It’s a testament to the principle that managing a successful kitchen is about getting the small, preventative details right. By investing in a reliable, well-made component like this, you’re not just buying a strainer; you’re buying operational smoothness, risk mitigation, and  the peace of mind that comes from knowing your kitchen’s plumbing is properly protected.

Explore more from Non Branded

How One Pipe Solves Two Kitchen Nightmares

Ever wondered how this simple tube is both a strainer and  an overflow? It’s all down to a clever, low-tech design. Think of it like a castle's moat and  drawbridge. The bottom part of the standpipe is riddled with small holes, acting as the 'strainer'. Water can easily pass through, but larger bits of food waste are stopped dead in their tracks, just like an army at the castle wall.

Now, imagine someone leaves the tap running. Instead of the sink filling up and  spilling over, the water level rises to the top of the open pipe and  drains away safely through the centre – this is the 'overflow' function. It acts as a secondary escape route for the water. It’s a beautifully simple, non-mechanical system that uses gravity to prevent both a blocked drain and  a flooded floor, all in one go.

Who Should Buy This?

  • Busy Restaurants

    An absolute essential for the pot wash station to stop vegetable peelings and  food prep waste from causing emergency plumbing bills.

  • Local Cafés & Bakeries

    Perfect for catching coffee grounds, pastry scraps, and  other debris that can quickly build up and  block smaller drainage systems.

  • Pubs & Bars

    Ideal for kitchen and  bar sinks to prevent fruit garnishes, cocktail sticks, and  other small items from getting into the waste pipes.

  • Canteens & Care Homes

    A reliable, low-cost solution for high-volume catering sinks, ensuring hygiene and  preventing overflows during the busiest mealtimes.

Find equipment tailored to your type of business:

Shop for Cafes Shop for Hotels Shop for Restaurants View All Business Types

You Might Also Like

Why Choose EasyEquipment?

  • Trusted for 50+ Years

    We've been kitting out UK kitchens for half a century—we know our onions.

  • Speedy & Free Delivery

    Get your gear fast with free UK mainland delivery, often as soon as the next day.

  • Price Match Promise

    Find it for less elsewhere? We'll match the price, no quibbles or fuss.

  • Real UK Support

    Got a question? Our friendly, UK-based team is on the phone, ready to help you out.

Ready to Order?

Stop worrying about blockages and  spills. Add the Buffalo GC591 Commercial Stand Pipe to your basket now for a smarter, safer kitchen.

Add to Cart Call Us for Advice

Customer Reviews

How do you rate this product?

Your voice makes a difference! We value your honest feedback and would love to hear about your experience with our products.

Please take a moment to leave a review and help us grow together.