What do you do about the groove?

[GAGAL]

When installing the "peel and stick" flooring, it leaves a groove between the tiles. Can you use grout to fill it in?

[amillertools]

there are floor-fill products specifically made for that, grout might work, but may not hold as well as the other products.

[GAGAL]

I asked the folks at Home Depot and Lowe's and no one knew of anything. Do you know the name of the "Fill IN'?

[ABP]

I do not know, but I heard that you should use a sealer to squeejee across the entire floor to seal it

[pushkins]

There is a product called "Seam Sealer" it looks like super glue and is applied between vinyl and PVC flooring to seal the seam, that should do the trick for you. It is available at most big box hardware stores