14
PROTECTIVE SAND CUSHION
Making a Protective Sand Cushion at the Foot of the Inner Pool Wall
ATTENTION: THIS IS A CRITICAL STEP THAT WILL PREVENT THE LINER FROM BEING FORCED
OUT UNDER THE WALL, TEARING, AND RELEASING THOUSANDS OF GALLONS OF WATER
INTO THE YARD. AVOIDING THIS STEP WILL VOID THE POOL WARRANTY.
• To protect the liner against the sharp edges of the bottom rail and pool wall, it is necessary to build
a protective cove made of moist sifted dirt or fine brick layer’s sand at the base of the pool wall
(see diagram 17 and 18). The size should be 6-in H x 6-in W so that it completely seals the bottom
rail but does not distort the pool liner.
• When the cove is complete, re-smooth the rest of the pool’s dirt floor. Follow the manufacturer’s
installation instructions if a manufactured cove is being used.
• Now that the wall is installed, the cove is created, and the dirt floor is smooth, it is time to install the
liner. The following general instructions apply for a typical overlap pool liner.
