We have 1 men's toilet + 1 urinal at work for about 15-20 men and 1 women's toilet for 3-4 women. The problem we have is that some of the employees don't check if everything has been flushed properly and that the bowl is clean.
According to the employees working here for a few years, this problem has been around for years. Management is getting notified of this issue a few times per year, notices have been hung out in the toilet room and it's even been mentioned on monthly meetings. But we still have this issue. It's unsanitary and unhealthy. The toilet is sometimes used by customers as well, so this also affects our public image.
What steps can be taken to ensure that this doesn't happen anymore?