To ensure proper system operation, Eljen Corporation requires all of its GSF and Mantis Systems to be installed using an ASTM C33 sand with less than 10% passing a #100 sieve, and less than 5% passing a #200 sieve.

Reference the Eljen GSF or Mantis Design and Installation Manual for your state for the proper amount of specified sand required for installation.

Installers should request a sieve analysis from their material supplier to ensure that the specified sand that they are purchasing for use during installation of the Eljen GSF or Mantis systems meets the specified sand requirements listed below.

Sieve Size Sieve Square Opening Size Specification Percent Passing
.375" 9.5 mm 100.0
#4 4.75 mm 95.0 - 100.00
#8 2.36 mm 80.0 - 100.0
#16 1.18 mm 50.0 - 85.0
#30 600 μm 25.0 - 60.0
#50 300 μm 5.0 - 30.0
#100 150 μm < 10.0
#200 75 μm < 5.0