Timed fill

[yogitunes]

the Maytag AMP was a perforated tub so to speak, as a solid tub shell was bolted to it, there was also a full outter tub to take care of any overflow....

the only perforated tub I knew of that did a time fill was a Maytag Highlander, in so, you had to watch for the fill portion, because any overflow was going on your floor.....the outter tub filled along with the inner basket, there was no extra outter tub to handle any overflow....

about your only safety for that machine was having the standpipe just below the fill level, some excess may flow out that way....

our neighbor had one of these, she was forever losing track of time, and would flood her kitchen...

 

[Chetlaham]

Ok- so this was a more solid tub machine thing. Though it would be kind of neat on new machine supplementing a pressure switch. Yes I have those dreams lol.

 

[yogitunes]

well yes....

but one thing you needed, water pressure....

after all, you have X amount of time to fill a machine before agitation began....

the one advantage when pressure fill was introduced, was it could operate at a minimum pressure, usually 20psi, and no matter how long it took, agitation would not begin until that selected level was reached....

I have been to homes with such low water pressure, where it would take close to 3 hours for a load to complete.....

 

[tomturbomatic]

low water pressure

I have been in older homes with iron pipes that had heavily corroded and the flow was greatly reduced.

 

[Chetlaham]

True, and well water with low pressure. But timed fill does work fine for DW

 

[yogitunes]

well, for some dishwashers.....

there are ones that only allow like a 2 minute window to fill, and theres also a float that would shut off the water if a certain level was reached...

I know my Kenmore is like that....if I turn too far and miss that window, it jumps right to turn on the motor without water....

 

[Chetlaham]

I think DW are such that the fill is based at a minimum water pressure, and at high pressures the valve has a restrictor which regulates it down to a specified GPM.

 

[philr]

My compact Frigidare GMini washer is time-filled but it does have a pressure switch in the outer tub as a safety feature in case the timer would fail and the washer would overfill. It's a safety feature that many time-filled dishwashers have (either a float switch or a pressure switch).

Some Frigidaire time-filled machines also had a solenoid that would make the timer escapement run faster during the fill periods so the wash time wouldn't be shortened on the "small load" setting. I have a few of these.

 

[tomturbomatic]

Phil, the WCI-60 has that. It stops after the fill in case the timer motor speed needs adjusting from fast speed for small load to normal speed for regular fabrics cycle.