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Thread Number: 46117
Dishwashers Alternating Wash |
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Post# 673889 4/19/2013 at 07:44 (4,024 days old) by countryguy  (Astorville, ON, Canada) |
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I know that modern dishwashers are all about energy conservation but why do they alternative the water to the bottom and middle spray arms? Are the pumps so weak that they can't put out enough water to both arms at the same time? I had a '91 Maytag with a full sized wash arm on top along with the spray tower in the middle and it sent the water to all 3 levels. Other than being noisy, that machine could clean anything. Except for a select few, why don't modern dishwashers have a full sized wash arm on top instead of that small constant rinse arm?
Gary | ||
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| Post# 673892 , Reply# 2 4/19/2013 at 07:55 (4,024 days old) by cycla-fabric (New Jersey (Northern)) | ||
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Post# 673896 , Reply# 3 4/19/2013 at 08:08 (4,024 days old) by countryguy (Astorville, ON, Canada) |
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On my Maytag the normal wash/rinse cycle was 45 minutes with an additional 30 minutes for a heated dry. My current K/A (about 5 yrs old) runs for over 2 hours on the normal cycle (I'm guessing about 90 minutes wash/rinse). So running an electric motor for twice as long but using less hot water is that big of an energy savings?
Gary | ||
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Post# 673898 , Reply# 4 4/19/2013 at 08:23 (4,024 days old) by RE563 (Fort Worth, Texas) |
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Actually.......
there is energy savings. Even though the machine is running longer, the motors suck up less energy than say your 1990"s model. I believe your maytag has a 1/3 horse power moter. Today most manufactures are using 1/5 horsepower. This along with turning down your hot water heater to 115 - 130 and letting the dishwasher heat the water own it's own works very well. Also, since the removal of phosphates from dishwasher detergents, they work best with a cooler, longer wash. The final rinse is heated to 140-155 degrees depending on what options are selected.
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Post# 673908 , Reply# 5 4/19/2013 at 09:36 (4,024 days old) by petek (Ontari ari ari O ) |
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On our KA when it's running on the one hour wash cycle you can hear that it's running pretty much full blast throughout. However on the sensor cycles which take up to 3 hrs, after the intial full blast washing it sounds like it winds down, the detergent dispenses and is basically just giving the dishes 90+ minutes of a gentle soaking. Keep anything wet that long (incl the kitchen sink) and of course it's not going to take much physical force to remove the remains .
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Post# 673946 , Reply# 6 4/19/2013 at 11:27 (4,024 days old) by logixx (Germany) |
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Yes, lower water intake results in only one or two spray arm working (two if you count ceiling wash arms or nozzles).
My Bosch will use 10 liters (2.6 gal) for a three-hour Eco wash or, on the same cycle with the speed mode activated, 13 liters (3.4 gal.) while reducing the time down to one hour. It'll still alternate between lower wash arm + ceiling shower OR middle arm, though. This load took 95 minutes to complete: a warm prewash, 70C (158F) wash, two hot rinses, a 73C (163F) final rinse and drying. 
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Post# 674003 , Reply# 7 4/19/2013 at 16:02 (4,023 days old) by Yogitunes (New Jersey) |
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| Post# 674085 , Reply# 9 4/19/2013 at 21:06 (4,023 days old) by jerrod6 (Southeastern Pennsylvania) | ||
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would have loved to see that video but with dishes inside the machine. | ||
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