I always wondered what the strange siren was I heard every now and then - it sounded so antiquated that I assumed it had no function and was at a loss to think what it was. Well, I found at by chance via http://www.hampton-online.co.uk. It sounds every Tuesday morning at 9am and is a test of the Chlorine warning siren at Hampton Water Works.

Substantial quantities of Chlorine are stored underground at Hampton and in case of an accident or terrorist incident local people are advised to take precautionary action. Chlorine is a highly poisonous gas which is heavier than air. In the unlikely event of their being an escape it will be blown with the wind and remain low to the ground. If the siren sounds at any time other than 9am on Tuesday it will indicate an emergency situation. So now you know!

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Good to know...
So if we hear it other than Tuesday at 9 we should walk around on our tip toes?
no. you should stay indoors and make sure all the windows are closed!

Beatrice Cullen said:
Good to know...
So if we hear it other than Tuesday at 9 we should walk around on our tip toes?
What happens if there's an accident on a Tuesday morning at 9:00?
well I suppose if it goes twice or thrice at around 9.00 that is probably not good news (either that or the alarm has developed a fault!).

Geoff said:
What happens if there's an accident on a Tuesday morning at 9:00?
I honestly thought it was an old war siren!
Me too! Reminded me of the time I visited the Imperial War Museum when I was a kid.

Sarah said:
I honestly thought it was an old war siren!
Someone should tell you about this when you move to the area. If the siren went off any other time other than 9am on a Tuesday and I hadn't read this I wouldn't do anything!

I don't know if I should be happy or sad to know this news...

The children at HJS all know about the siren! And so does Robert Elms on BBC London, often comes up in conversation.
Yes I heard that on a Tuesday and thought it sounded like a 2nd world war siren. Dad's Army on practice methinks.

Oh! I always thought it was for floods! Very interesting!..:O)

So presumably one should go to the top floor of your home?

 

Thanks

Did anyone hear the siren yesterday afternoon, only a short one, but had me worried.

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