Installation Instructions TUSCANY yim i 607-9679 Before you begin: Prepare counter top by sling a 11/2" diameter opening for ihe drain al desired location, Place vessel sink on Busgirl Brain Top the counter top as shown below. Best Foster Washer 1, Marks sure the vessel sink is not chipped or broken prior fo Installation. 2. Cheek to see that you have the following parts: ¥ Vessel sink + Pop-up drain (sold separately) GEE fiat Ripe Flat Waster ra installation 1.