On Jul 20, 10:54*am, wrote:
I don't see what the point is of opening the valve half
way to reduce water flow is. * For most of the water use,
the washer is going to fill up to the set fill level whether
it takes 3 mins or 30 mins. * The only time a half open
valve would make a difference is during the beginning
of the rinse cycle, when it spins and sprays fresh water
before filling for the rinse cycle. *That is to get rid of any
foam and displace the water in the clothes with clean
water. * So, I'd want the water to be coming in fast,
not slow. *It doesn't amount to much water, its only
a few intermittent sprays.

Since the washer shuts the water off abruptly, *having the valve open
half way means there is less of a shock to the pipes, etc., due to the
abrubt water shutoff. *That is the only reason for the valve to be
opened less than all the way.

J.

Does the water being shut off actually cause a
water hammer, ie the pipes banging around?
Or is this just a theoretical concern?
If it's the latter, I wouldn't worry about it. I've
heard a lot of people complain about water
hammer from a noise point, but can't recall
pipe failure being attributed to it. I guess it
could occur, if it's bad enough.

There are also devices you could have soldered
on near the valves that are essentially shock
absorbers for exactly that problem.