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RedR TSS

Hi Binaya, I remember a practical at University when we set a similar system up ( If not the same) . As you, I didn't understand a need for 100ft pipe when a much shorter one was much more practical on many levels. As a result of the economies, mine was the only one not to work, the reason, the pipe was too short. The optimum pipe length had been set at 100ft, possibly by trial and error over the years, but no one else at the time could explain why that was, theoretically. I will do a little more research and try and find out, possibly the links above or books listed may do if you can get hold of them. I hope this helps. Best wishes Pauline R RedR