Step 7 · Install New Faucet
First, place the gasket or base plate (included with the new faucet) onto the sink. Carefully feed the new faucet's tailpieces and mounting studs down through the holes in the sink deck. From underneath, slide on any supplied washers and thread the mounting nuts onto the studs. Hand-tighten the nuts first to position the faucet correctly from above, then use the basin wrench or supplied tool to snug them down securely. Do not overtighten.