UK Drain Marking Schemes


Only rain down the drain – Thames21 drain marking programme.

Linlithgow Loch – Linlithgow Loch Catchment Management Group marking scheme.

Yellow Fish Wales – Keep Wales Tidy, Natural Resources Wales and Dwr Cymru drain marking campaign

Dighty Burn – Yellow fish marking programme in Dundee.

Healthy River Code – Use our markers as part of the code and improve the health of your local river.

Loughborough University – Internal guidance on drainage systems and use of our markers.


Yellow Fish Campaign – South Devon Area of Outstanding Natural Beauty drain marking.


das Manufacturing – American manufacturer of our stock community and utility markers.