Dishwasher 2 arm to 3 arm?

It depends on the model you have. Is yours a tall-tub model with a manual/removable filter at the bottom, or is it a self-cleaning?

You technically could, but it may be more trouble than it's worth. The third level sprayer at the top of the tub, those equipped with it, is basically just a sprinkler. It does help with keeping niblets out of the top of glasses and recesses in the bottoms of bowls and such, but doesn't really add to the cleaning power of the machine as a whole. It won't affect performance or cause strain either; they don't have to change the motor/pump system to accomodate for ones with versus ones without third level sprayers. There isn't enough volume or pressure going to it to cause any decrease at the other points.

The supply tube that comes from the hub of the lower wash arm and goes up the back of the tub would be your key component. The lower end models have the supply tube stop just at the point where the upper rack's wash arm connects. The ones with a third-level sprayer continue up and out to the point where it mounts to the tub ceiling. I added some photos of both just to give reference. You would have to replace the entire supply tube in order to add that sprayer. Because the tubs are all the same, there *should* be a recess and blank screw hole for the tube to mount into the top.

At that point you'd probably spend $60+ buying the supply tube itself, plus the upper sprayer assembly since they don't come paired, and possibly the screw just to secure it to the top of the tub. This process would be the same for the filter model or the self-cleaning model (Point Voyager platform), you'd just have to be sure to use the right part numbers for the right one, as they did update the wash arm system.

Photos... < > Photo 1 of 2 View Full Size


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Post# 778338 8/20/2014 at 12:54 (3,528 days old) by washerdude (Canada )
Checkrate/Likes So we have been quite happy with our new kenmore it does a fantastic job. But i've been wondering. Can you convert this into a 3 one with 3 spray arms? (Bottom, Middle, top). It currently has 2 spray arms. Would it cause extra stress on the re circulation pump?

Post# 778349 , Reply# 1 8/20/2014 at 14:06 (3,528 days old) by murando531 (Augusta, Georgia - US)
Checkrate/Likes 1 It depends on the model you have. Is yours a tall-tub model with a manual/removable filter at the bottom, or is it a self-cleaning? You technically could, but it may be more trouble than it's worth. The third level sprayer at the top of the tub, those equipped with it, is basically just a sprinkler. It does help with keeping niblets out of the top of glasses and recesses in the bottoms of bowls and such, but doesn't really add to the cleaning power of the machine as a whole. It won't affect performance or cause strain either; they don't have to change the motor/pump system to accomodate for ones with versus ones without third level sprayers. There isn't enough volume or pressure going to it to cause any decrease at the other points. The supply tube that comes from the hub of the lower wash arm and goes up the back of the tub would be your key component. The lower end models have the supply tube stop just at the point where the upper rack's wash arm connects. The ones with a third-level sprayer continue up and out to the point where it mounts to the tub ceiling. I added some photos of both just to give reference. You would have to replace the entire supply tube in order to add that sprayer. Because the tubs are all the same, there should be a recess and blank screw hole for the tube to mount into the top. At that point you'd probably spend $60+ buying the supply tube itself, plus the upper sprayer assembly since they don't come paired, and possibly the screw just to secure it to the top of the tub. This process would be the same for the filter model or the self-cleaning model (Point Voyager platform), you'd just have to be sure to use the right part numbers for the right one, as they did update the wash arm system. Photos... < > Photo 1 of 2 View Full Size

Post# 778739 , Reply# 2 8/22/2014 at 16:06 (3,526 days old) by jerrod6 (Southeastern Pennsylvania)
Checkrate/Likes It definitely would depend on the model of DW. Mine has a third spray arm but the feed tubes are concealed in the sides of the machine, plus I think there is something going on at the pump that decides where the water is going so I would be very careful about trying it. Mine has more of a full spray arm across the top and I would be wondering if your DW is even taking enough water for each fill to run three arms.

Post# 779083 , Reply# 3 8/24/2014 at 14:48 (3,524 days old) by washerdude (Canada )
Checkrate/Likes Heres what i noticed from this video. The top of the tub looks exactly the same on mine. Everything, the hole, the little indent thing. And yes it the filter model. CLICK HERE TO GO TO washerdude's LINK