Sharon in Toronto has a small tear in her kitchen vinyl floor, that none of the kids own up to. How to repair it?
A pro will use a special "seamer" that matches the brand of floor for the right chemicals. For a good DIY patch, use transparent silicone.
Cut it a little more if necessary to clean out carefully below. Fill the hole with transparent silicone caulking and then push the vinyl in flush with the top surface. The silicone may serve as a bit of a filler for a dent below. Wipe off the excess and put masking tape over the patch to hold it for 24 hours. You will need to carefully scrape a bit of excess silicone after removing the tape.