Hello,

this one sounds obvious but I've already seen differences between what I
read in books and what is common practice so I figured I'd ask.

Getting ready to install porcelain floor tiles. We're going to use those
little plastic spacers to establish grout lines. It clearly says on the
package to remove the spacers prior to grouting. There is a tool especially
made for removing these things.

Installer (or perhaps soon to be ex-installer) says he plans on just leaving
them in and grouting on top of them. This seems crazy to me. Is this
commonly done?

thanks for comments
ml