How To Mount Undermount Sink?

Measure the sink opening and countertop cutout to confirm a proper fit

Clean and dry the underside of the countertop and the sink rim

Position the sink under the countertop opening

Apply a continuous bead of silicone sealant around the sink rim or underside of the countertop cutout

Lift the sink into place and align it with the opening

Support the sink with mounting clips, brackets, or a sink support frame

Tighten the mounting hardware evenly to hold the sink securely

Check that the sink is level and centered

Wipe away excess sealant from the edges

Allow the sealant to cure fully before connecting plumbing or using the sink

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