<p>Sink and basin installation involves preparing the countertop/vanity, <a href="https://www.google.com/search?q=installing+the+faucet&amp;sca_esv=6cb7a2be6a98ef63&amp;ei=9j1aaeCKFofkseMPtJ2aoA8&amp;ved=2ahUKEwiCkqnJ6vGRAxWhxTgGHRiCGhYQgK4QegQIARAC&amp;uact=5&amp;oq=Sink+%26+Basin+Installation&amp;gs_lp=Egxnd3Mtd2l6LXNlcnAiGVNpbmsgJiBCYXNpbiBJbnN0YWxsYXRpb24yBhAAGBYYHjIGEAAYFhgeMgsQABiABBiGAxiKBTILEAAYgAQYhgMYigUyCxAAGIAEGIYDGIoFMggQABiABBiiBDIIEAAYgAQYogQyBRAAGO8FSOkUUNUMWNUMcAN4AJABAJgB9QGgAfUBqgEDMi0xuAEDyAEA-AEC-AEBmAIEoAKiAsICDhAAGIAEGLADGIYDGIoFwgIIEAAYsAMY7wXCAgsQABiABBiwAxiiBMICCxAAGLADGKIEGIkFmAMAiAYBkAYHkgcFMy4wLjGgB_cEsgcDMi0xuAeAAsIHBTItMi4yyAcigAgA&amp;sclient=gws-wiz-serp&amp;mstk=AUtExfBhEtmFTAC_SfEpgcD8dExm3RFZ4cPAsSptis22UtbHj30ZALKRmOnAzNVWmDJGPKXjvoZ4I4G54CuxpbGebPwI8yAlLkYAjLjeLLZsv_z0RBGG1ZSRLx_7ohhZL4Sy3M0AoheLAGkfQXMxG01F9SsmU2sd87s0O0JGPnrORHGCk_jWYUT1jy5dyzJngDHykQdM&amp;csui=3">installing the faucet</a> &amp; drain assembly onto the sink, setting the sink, connecting the P-trap &amp; supply lines, sealing all joints with silicone or putty, and finally testing for leaks by running water and checking all connections. Key steps include ensuring the water supply is off, pre-assembling components for easier fitting, and using sealant for watertight bonds.&nbsp;<br>&nbsp;</p><p><strong>General Steps for Installation</strong></p><ol><li><strong>Preparation:</strong><ul><li>Turn off the main water supply and drain old lines.</li><li>Test fit the new sink in the opening to ensure it fits.</li><li>Pre-assemble faucets and strainers to the sink bowl if possible, often using plumber's putty or silicone for sealing.</li></ul></li><li><strong>Install Faucet &amp; Waste:</strong><ul><li>Mount the faucet, ensuring it's straight and secure with its washers and nuts underneath the sink.</li><li>Install the basin waste (drain) through the sink hole, applying sealant (putty/silicone) around the flange and tightening the locknut underneath.</li></ul></li><li><strong>Mount the Sink:</strong><ul><li>Apply a bead of silicone or plumber's putty around the rim or vanity surface where the sink will sit.</li><li>Lower the sink into place, pressing firmly.</li><li>Secure it from underneath with mounting clips or screws.</li></ul></li><li><strong>Connect Plumbing:</strong><ul><li>Attach flexible tap connectors from the faucet to the hot (left) and cold (right) water supply lines, using plumber's tape on threads if needed.</li><li>Assemble the P-trap and connect it to the sink's waste pipe and the wall's drainpipe, securing with slip nuts.</li></ul></li><li><strong>Seal &amp; Test:</strong><ul><li>Apply a bead of silicone sealant around the rim where the sink meets the countertop/wall for a waterproof seal, smoothing it with a tool.</li><li>Allow sealant to cure as directed.</li><li>Turn the water back on and thoroughly check all connections for leaks.</li></ul></li></ol>