iSpring Water Systems Page 11
D. Mounting the Drain Saddle Valve
A Drain Saddle Valve is used to make a waste water connection with the
drain under the sink and is designed to fit around a standard 1 1/2-inch OD
drain pipe. The drain saddle valve should always be installed before (above)
the p-trap and on a vertical or horizontal drain. To avoid clogging the drain line
with debris, do not install the drain saddle near a garbage disposal.