Lamontagne Vessel Sinks November 05th, 2017 - 10:14:21
Vessel sink installation is simpler than traditional flush mounted rim style sinks. A single 1.5 inch diameter counter top drain hole is all that is required to position and plumb a bathroom vessel sink. Conventional flush mount rimmed style basins require a much larger counter cut out almost as large as the sink itself. Vessel sinks have the additional advantage of providing more useable counter space beneath the curve of the sink bowl. Since a vessel sink occupies less counter area, this offers an additional advantage in limited space installations. Vessel style bath sink drains which were at one time difficult to obtain are now as commonly available as traditional drain fixtures.
For an above counter installation, you will need a hole that is large enough to accommodate the drain assembly. This is the plumbing hardware that allows the sink to drain the water. If the bottom of your vessel is flat, then the installation is straightforward. The only thing we would recommend is a bead of silicone under the sink and around the edge to prevent water on the countertop from working its way underneath the vessel. If the vessel has a rounded shape - as with most glass vessel sinks - you have two options. You can either use a vessel mounting ring (sometimes these are provided with the sink) or you will need to provide a mounting hole directly in the countertop.
Due to design considerations, a mounting ring is not always desirable. If you want to mount the vessel directly into the countertop, you will need a hole that is at least 3" in diameter with a beveled edge in the countertop material to accommodate the shape of the bowl. You may want the hole to be more in the range of 5" - 6" if the vessel is larger for stability. Use clear silicone to provide cushion and stability when mounting the sink. If you want to lower the level of the sink you can simply enlarge the hole. The larger the hole, the more stability you will achieve in the installation. To experiment with the size of the hole, use a piece of cardboard. Start with a smaller size - say 3" - and work your way up. This will give you a visual as to how far down the vessel will be relative to the counter throughout the size range that you choose. Be sure to keep the height of the faucet you have chosen in mind when making these decisions.
A special caution for glass vessel sinks. If you are installing a glass vessel, be sure to provide a cushion between the glass and the counter. This can simply be a bead of silicone or you may want to line the hole in your counter with a small piece of rubber material. In addition, be sure that you dont over tighten the drain assembly. Hand tighten only and follow the manufacturers instructions. The breakage we see with glass vessels is usually associated with an improper installation of the drain.