CAN YOU FIT A WASTE DISPOSAL UNIT UNDER A GRANITE OR QUARTZ WORKTOP IN ANY KITCHEN?

Many of our customers fit waste disposal units, and there are two issues that relate to the stone worktop installation:
1)    All waste disposal units are heavy, and in addition the electric motor generates vibration and torque when it is switched on.  As the units are effectively suspended from the bottom of the sink this weight and force presents a challenge to support; the standard silicone sink-to-worktop join should be given added security with a cradle built into the kitchen unit.  This advice is all the more critical where a ceramic sink is fitted; the extra weight and weaker seal to the silicone make the cradle essential.  In general our customers and kitchen fitters build the cradle, although our fitters can do it, by prior arrangement and at an additional cost.

 

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Insinkerator fitted under Cimstone Oasis quartz and a large Blanco sink near Horsham. One cross batten and two front to back battens create the cradle which holds the whole unit up and sealed against the worktop.
2)   For batch-type waste disposal units, requiring a separate air-switch, a small cut-out needs to be made in the worktop for this to be installed. In all our experience, this is only the size of a taphole, a relatively economical element in a stone worktop installation.The fitting of the waste disposal unit and the switch is done by a qualified plumber/electrician; we make the necessary cut-out in the worktop.
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Franke undermounted sink fitted to 20mm Cimstone Sines quartz; an airswitch for a waste disposal unit is visible at top left.

 

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Close up of airswitch on Cimstone Sines.