OK... The parlour they went to see was a herringbone. It is probably the most common type of parlour, and it's what you are likely to see on the news reports at the moment. There was one on BBC news at lunch time. The cows stand on each side of a central pit, so their udders face the out, at around the eye height of the operator. They are angled so that from above they look like a herringbone hence the name. David mentioned the 50 degree angle, which is relatively recent, so I'm guessing this is different to the Brookfield parlour. In fact I'm assuming everything they mentioned, they don't have at home. I'm going to have to make a few assumptions about the system they had, but the gist is as follows:
The cows wear collars or eartags which give off a signal to the equipment so the farmer doesn't have to input any numbers. The parlour then feeds the cow an allotted ration according to her yield and stage of lactaction. The farmer has sorting gates on the exit from the parlour so if he needs to segregate a cow he can put it in the computer and it will draft her out automatically, while he continues to milk the other cows. The computer system attached to the parlour also holds records about each cow, including when she calved, how much milk she is giving, when she is due to be inseminated, and what medicines she has been given.
I don't know much about the auto washing of the parlour, I assume they were talking about washing down the concrete surfaces, which is normally done with a heavy duty high pressure hose, but can be automated.
I think the major benefit of the parlour they saw today was it's speed, which is largely due to its size. The farmer mentioned milking 150 cows in one and a half hours. That's similar to us so I'd guess its a 16/32 parlour. It can milk 16 cows at a time. I have no idea how big the parlour at Brookfield is to compare.
The extras, the computer and so on, are the luxuries, and won't speed up milking. They just make the management easier.
Ruth is funny, one minute she doesn't want to spend money on slurry storage, the next money is no object for the parlour.
And Helen - the shop isn't JUST Tina's responsibility, someone has to manage Tina too! In fact I would be having a performance review if she was my employee, and she would be on seriously thin ice.