Recently the hot water pressure has gone down only in our kitchensink. A day or two earlier, ew had to turn our water off for some unrelated plumbing work, and when we turned it back on, the hot water pressure was significantly lower, but only in the kitchen (the bathroom tubs and sinks all have good pressure). In the basement, there is a laundry sink on the same line as the kitchen sink, and the hot water pressure there is unchanged. We recently replaced the aerator on the kitchen sink (though before we shut the water down), but I don't think it's that because the cold water is strong. The hot water pressure is OK (it has a decent flow) but it is noticeably slower than the cold water. Is there a quick fix for this problem? Should I be concerned about this or just let it go?

Mario C.