Have a look on Uncle Google, the cow milking machines had a pulsator in the system to try and duplicate a calf sucking, it was also for the cows health, a constant vacuum/suck on the teats produced some unwanted health problems.
I know you have goats and soon sheep, but a teat is a teat, you may be harming the udder the way you are going.
Otherwise, well-done Mama-Pepper, a fine machine have invented.
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