I use the blue water soluable makers. And the purple dissappearing marker. The purple only if I intend to quilt right now. I've had it disappear in just a few hours. The blue stays untill you wash it in cold water. Often I will spritz with water while still on the frame. It will however come back when spritzed. But still washes out well. Chalk pencils havent worked well for me. But I do use the larger mechanical chalk from clover and they wash well. Fons and porter mechanical also works well for me.