SUPPLY AND SERVICE OF FILTRATION MEDIA

Kim Frater, founder of Bid Trawler
Written by Kim Frater
Former Public Sector Buyer • Founder of Bid Trawler • 40+ years' public sector experience
"I believe public procurement shouldn't be complicated. Every guide I write explains the process in plain English so you can bid with confidence."

2 minute read  •  Updated September 2026

A practical guide to understanding what Scottish Water really needs and how to build a winning response.

Don't just focus on the materials

When you think about filtration media, the mind often jumps straight to the materials.

Sand, gravel, GAC — yes, they're crucial.

But what Scottish Water is really buying is reliability and quality in their public water supply system.

The contract covers the supply, delivery and installation of filtration media like sand, gravel, GAC, reactivated GAC, anthracite, bonechar and Filtralite.

But remember, this is about ensuring safe and clean water for the public.

That’s what you’re enabling.

Understand the framework's scope

This isn't just about supplying filtration media.

You're competing to become a trusted partner over an extensive period — nearly eight years.

That's 2,880 days of providing consistent service and quality.

Winning a place on this framework doesn't mean guaranteed work.

It means being in a position to secure work when Scottish Water decides to call off contracts.

Pay attention to what they say

Scottish Water has laid out the importance of using products approved for use in the UK public water supply.

This tells me they are prioritising compliance and safety.

Your bid should reassure them that your products and processes meet these standards without exception.

I'd be explicit about certifications and quality assurance processes.

The importance of direct award readiness

Once on the framework, work can be awarded directly or through further competition.

Being ready for direct awards means being easy to find, priced competitively and known for reliability.

Show how your business can respond quickly and efficiently to Scottish Water’s needs.

Evidence always beats promises

Having evidence is key.

You can promise the world, but evidence is what convinces.

Showcase:

  • Previous successful installations with similar utilities
  • Testimonials from satisfied clients in the water supply sector
  • Certifications and compliance documents
  • Case studies demonstrating problem-solving capabilities

Think about long-term consistency

Being on a framework is about delivering over the long haul, not just a single project.

I'd be thinking about how to maintain service levels throughout the duration.

Consider how to handle staff turnover, equipment maintenance and quality checks.

Consistency is the hardest thing to deliver, and buyers know it.

Remember who you're trying to convince

Your submission should speak directly to the concerns of Scottish Water.

They’re managing a significant public responsibility.

I'd focus on how your service will support their goals, not just meet their needs.

The potential risks and how to mitigate them

Every framework has risks.

For this one, think about supply chain disruptions, product quality issues and delivery delays.

Explain clearly how you'll mitigate these risks.

Proactive risk management will set you apart.

Common mistakes

Avoid submissions that:

  • Focus solely on the products rather than the outcomes
  • Overlook the importance of compliance with UK standards
  • Make unsubstantiated promises without evidence
  • Ignore the need for long-term consistency and reliability
  • Fail to address how you will manage risks
  • Lack clarity on how you handle emergencies or unexpected issues

My Final Thoughts

Reflect on what Scottish Water really needs from this framework.

They're looking for suppliers who ensure safe, reliable and efficient filtration solutions.

With a framework value of £60 million over nearly eight years, quality and reliability are paramount.

If quality carries significant weight in the evaluation, your written submission should be your strongest suit.

Thanks for reading.

I hope this guide has helped make public procurement feel a little less daunting. If it has, then it's done its job.

Kim
Founder, Bid Trawler

P.S. Got a question?

If you've got a question about anything you've read, or you're stuck on a tender, just send me an email.

Whether it's a quick question or you simply need pointing in the right direction, I'm always happy to help if I can.

kim@bidtrawler.com

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About our "How to Win This Contract" guides

Our guides are written using publicly available procurement information, including contract notices and published tender documents where available. They are designed to help suppliers understand the buyer's likely priorities and think more strategically about their approach. They are not based on any bidder's confidential submission, bespoke bid strategy or non-public procurement information.

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