Illegal if you mean roadside storm drain, as with motor oil.

Not sure about foul sewer, but I suspect your Water Authority may have
something to say about it, certainly if it's not suitably dissolved.

On Fri, 23 Aug 2013 18:52:09 +0100, alan
wrote:

On 23/08/2013 09:46, Tim Lamb wrote:

What do people do with unwanted paint?

Tip it down the drain.
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