Steve Wood wrote:
> Andy Greener wrote:
>
>> Probably, but we can still have a bit of fun debating the thermal
>> transmission properties of a narrow lock (Wheaton Aston). Does more
>> warm water get through a lock with or without a boat in it, and what
>> about wide/broad locks? Does length matter? ;-)
>
> Conversely, is it to do with chemical make-up of the "water" that
> comes from the sewage works? ;-)

*Anything* dissolved in water will lower the melting point (including the 
air that has been aerated into the liquid)

Ron Jones
Process Safety & Development Specialist
Don't repeat history, unreported chemical lab/plant near misses at
http://www.crhf.org.uk Only two things are certain: The universe and
human stupidity; and I'm not certain about the universe. ~ Albert
Einstein 


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