Knowledge Centre

Technical resources

Practical guides written for plant operators, maintenance engineers and procurement teams — no fluff, just what helps you buy and run filters well.

A practical guide to choosing sand, anthracite, gravel and pebbles for multi-grade and dual-media filters — layer by layer.

How to choose and replace filter nozzles and strainers — slot size, thread, design types and what to check before ordering.

Two black filter media with completely different jobs — how to tell which one your treatment problem actually calls for.

Ask our team directly — decades of practical experience, free of charge.