On Nov 26, 10:39*am, "Steven L." wrote:
Hi all,

The spray in my Kenmore dishwasher has gotten pretty weak--the dishes on
the lower rack get cleaned, but the glasses and stuff I put in the upper
rack don't even get wet anymore.

My dishwasher has only a lower spray arm (no upper spray), and I suspect
it may have gotten clogged.

How do I remove it so I can clean it thoroughly? *It doesn't seem to
come off by itself.

Also, could there be some other cause of the weak spray? *I can't be
sure, but I think the spray arm isn't spinning as well as it used to
either. *What could be causing THAT?

-- Steven L.

@Steve:

Two things can cause poor water flow through the nozzles in your
dishwasher:

Hard Water Deposits
Bio-film/Lipid Build Up

Hard water can be an issue if your local water chemistry is bad,
you would know if this was the problem or not based on other
water applications in your home being affected (the shower, sinks,
and clothes washer).

Bio-film is actually what most people see on their dishes even
when they think it looks like hard water deposits. If you don't
rinse off the grease and food from your dishes it builds up on
surfaces inside the dishwasher where you can't see it and
becomes a soup which supports growth. This same issue
causes smelly front loading washing machines as the film
builds up on the outer surface of the clothes drum where you
would never see it unless you took the machine apart.

You need to use some CLR in a cycle if you suspect
hard water and definitely need to begin using an
enzymatic dishwasher detergent which will break up
the fats/greases/food proteins in your dish washer and
not allow them to become deposits and create a bio-film.

~~ Evan