A bathroom sink may leak for several reasons, one of which is because the faucet becomes loose and allows water to leak. Other reasons include puddled water on the counter seeping through to the spot where the sink and countertop meet or the pipe connections being loose. These issues can be quickly fixed without spending much money.
You will need:
Step 1: The faucet can be tightened to the sink top by tightening the nuts located on the faucet stems that are under the sink. Use the wrench to carefully tighten these nuts, taking care not to overtighten or the faucet body could crack.
Step 2: Pour some water on the location where the sink bowl meets the countertop. Check under the sink to see if any water leaks through this spot.
Step 3: If water is still leaking, use the utility knife to cut the old caulk from around the sink bowl. Put some mineral spirits onto the rag and use it to clean completely around the bowl.
Step 4: Evenly apply bathroom caulk around the area where the sink bowl meets the countertop. Use your finger to spread the caulk, creating an even bead that will fill the crack between the countertop and the bowl.
Step 5: Use the mineral spirits on the rag to remove any extra caulk from the counter. Allow the caulk to dry for 24 hours before using the sink.
Step 6: If any connections between the pipes under the sink are leaking, tighten them using the pliers.
Step 7: If these connections continue to leak, turn off the water line and remove the plumber’s tape from the threads and apply new tape. Use the pliers to reconnect the pipe lines.