I'm helping a neighbor put tile in his bath. we're almost ready to tile. he choose 2x2 ceramic mounted on a sheet. i'm thinking my 1/4x1/4 square notch is going to put down too much thinset. will my 3/16 v notch be the better choice?
Location: San Diego, CA (Northwest part of the city)
I'd go with the 3/16" v-notch. I think you are spot on about the 1/4x1/4...too much thinset oozing out. Educate your neighbor prior to setting...he's responsible for getting all the thinset out from in between the tiles.
If that doesn't work, I'll always think it should have.
If your tile has a relatively flat backing on it the 3/16" v-notch will do.
If the tile has large cups, or appears to be cut out of a larger format
tile i would suggest doing the pull test. Notch an area and lay the tile
into the thinset. Pull up a few pieces and check your coverage. If the
tile needs more thinset either skim the backs of the tiles or move up
to a larger notch trowel.