So the different chalk colors tie to different permanence. Blue comes off easy, but if I recall red is more permanent.
Or try this??
Bosch Professional Tile and Square Layout Laser GTL3 , Blue https://www.amazon.com/dp/B002OHDSMO/ref=cm_sw_r_awdo_navT_a_PQ41Q5DBNP6HJZF0NX3A