The icemaker in our GE refrigerator (GSH25JFXBWW) makes ice but it
does so very slowly. There are only two of us who use ice. For the
last three days, I was the only one using ice and the icemaker did
not quite keep up with my use. I do not waste ice. I put the ice
in a one-quart insulated jug and add chilled water from the
dispenser in the refrigerator door. I drink the water until it gets
too warm and then add more ice.

Does anyone know what could be causing the problem? The temperature
in the freezer compartment stays between plus 10 and minus 4 degrees
Fahrenheit. We have very hard water. I think it is about 250 ppm
total hardness. Could mineral deposits have mostly clogged a water
opening? Thank you in advance for all replies.
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When I am in the kitchen, I often kick one of my cat's balls.
After I kick it, he will sometimes play with it for a few
seconds to several minutes. His favorite are the ones that
rattle. He'll play with any ball that makes noise.