I am not sure where the water is coming from, but am currently thinking that the bricks are absorbing water and that normally the moisture settles into the ground, however, since the brick steps are built on the sidewalk the cement sidewalk is so dense that the moisture can not get through the sidewalk and the path of least resistence is such that the moisture flows through the mortar at the front of the steps.
Any thoughts on where the water is coming from?
Are there any long term potential problems from the moisture being in the cement and mortar for an extended period of time?
Should I seal the bricks?
Does sealing the bricks cause long term damage?
Will sealing the bricks make them slippery?
Any thoughts would be appreciated.