DEARBORN, Mich. — When pools of water began accumulating on the floor in some restrooms at the University of Michigan-Dearborn, and the sinks pulling away from the walls, the problem was easy to pinpoint. On this campus, more than 10 percent of the students are Muslims, and as part of ritual ablutions required before their five-times-a-day prayers, some were washing their feet in the sinks.

The solution seemed straightforward. After discussions with the Muslim Students’ Association, the university announced that it would install $25,000 foot-washing stations in several restrooms.

But as a legal and political matter, that solution has not been quite so simple. When word of the plan got out this spring, it created instant controversy, with bloggers going on about the Islamification of the university, students divided on the use of their building-maintenance fees, and tricky legal questions about whether the plan is a legitimate accommodation of students’ right to practice their religion — or unconstitutional government support for that religion.

“It’s an awkward thing,” said Alexis Oesterle, a junior. “If I’m sitting with Muslim friends, I wouldn’t want to bring it up. In this country, at this time, it’s not so easy to discuss the issues of Muslims in American society.”