Kd- 20 strainers what gives ?

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Mo water

Take peek at the water line on your 20 and you'll have your answer :)

The KD-18 and older machines have a higher fill rate with a water line that's about a 1/2 inch from the very top of their screen mesh. The KD-19 and 20 machines (and newer) have a lower water fill rate with a water line that's just a hair higher than their screen mesh.
 
Picture is worth a thousand words.

Lets make this less confusing.

Here's the water line of the KD-19/20 on the left. Water line of the KD-18 and older on the right.

qsd-dan++12-15-2012-13-48-37.jpg
 
cycle segment??

Are you measuring the water level at the first fill segment? Just thinking that the 18 fills and runs thru the whole cycle and only stops at the final rinse where there is usually a lower fill for the sani rinse heating if selected and the same amount for the final rinse if any other cycle is selected.
The 19 and 20 would fill and then heat which may have had less water at that point. Where is the water level in the main was segments? Is that when you hear a difference? Once the machine gets up and going, you are going to get clean dishes..It's a Kitchenaid!
Seriously, though, all you need to do is look at the cycle timer charts and that will tell you the actual amount of water to be expected for each segment that the machine fills.
 
In the 18 series, the two wash segments of the cycle fill to a higher level than the rinses with the exception of the one gallon fill for the final finse on the Superba. I thought that the plastic-topped filters were first tried in the 16 or 17 series in models below the Superba because those models did not have water heating so there was no heating element in the sump. The Superbas had all metal mesh screens. I thought that it had something to do with safety in case of the heater being activated with insufficient or no water, but I might not remember that clearly.
 
In my KDS-18, all water levels are the same with the exception of the final rinse. The final rinse fills to the same water level point that my KDS-19 does for it's regular cycles, so I think the final rinse in the KDS-18 is closer to or slightly more than 2 gallons of water.
 
All rise for the reading of Doctrine...

The KDS-18 has two fill levels. The low fill level should be at top of vertical wall of strainer. Low fill level phases are pre-washes 1 & 2 and the final rinse. High water fill level should be 2" up the vertical plane of the strainer. 3rd pre-wash, main wash and rinses 1 & 2.

The 19 and 20 series also have two fill levels 7 & 9 quarts.
 
WOw Stunning

I don't know how far my machine fills, I think I have the cycle timing charts, I just got the SM &PM for the 17,18,19,20,21 machines.  I just thought the all access design of the metal filter would return more water to the pump quicker. With the black filter in the machine definitely goes whoosh whoosh , with the all metal its more of a constant roar.

The black one which came with the machine states in embossed letters on top that the heating element is NOT engaged in the drying cycle. 

 

 

[this post was last edited: 12/17/2012-09:11]
 
I skimmed the service manuals for the 19 & 20 series last night but I didn't stumble across a water level reference point in them, like they had for the 18 but I'm sure there's some mention of it.
or...

Fill a 1 quart pitcher with water and pour into machine 7 times... LOL
 
Jon, get out of the TIKI bar and into the math class! 7 quarts is one quart less than 2 gallons or 1.75 gallons per fill and that's water, NOT distilled spirits.

When I was a lab assistant in college, after washing & rinsing the pipettes, the only way to dry them was to suck pure ethyl alcohol up into them and then release it because the alcohol was thirsty for water. Lab glassware washers can be programmed to provide a distilled water rinse.
 
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