Warnings
© 2012 Little River Research & Design; updated July 2018
1
YOU MUST READ AND UNDERSTAND THESE WARNINGS
BEFORE USING THE EMRIVER MODEL
The Emriver model is very heavy when filled with water and sediment. A collapse of the
model’s supports could severely injure or kill a person. Be absolutely sure you understand
how to use the supports.
Use only the supports provided with the Emriver geomodel. Despite weight-bearing claims, no
standard production sawhorse is strong enough to safely support the model. Sawhorses and
folding tables can collapse under dynamic or side loading.
Check all fittings on the aluminum supports before each use to be sure they are secure.
When setting up the box, the supports must be laterally level and aligned. They must also be
aligned with the proper support point underneath the box. Otherwise the box could warp or
collapse when loaded.
Never set the box up on a surface with a slope exceeding 8% (a 7-inch drop in 7 feet).
Never use more than 27 gal (102 L) of water in the model. Using more than the maximum
amount of water and sediment could cause the box or supports to collapse.
Never use more than the provided 150 lb (68 kg) of sediment in the box, and do not place any
heavy objects in the box.
Never allow people to sit or stand on or in the box. Never get underneath the loaded box.
Use only the pump and power supply provided with the Emriver Em2. Be certain to connect
the power supply to a properly grounded outlet. Always use the Ground Fault Circuit
Interrupter (GFCI) provided with the Emriver model (see Figure 18), and be sure to read the
manual that accompanies the GFCI.
When using a 12-volt battery to power the model, always use the Emriver Battery Adapter
from Little River Research & Design. Never bypass the fuses.
When powering the model with a 12-volt battery, be sure you understand the dangers
associated with charging and using lead-acid batteries, and consider using safer spill-proof
batteries.
The box should only be used for its intended purpose as stated herein.
If any part of the box or pumping system is damaged, if you have any doubts about the
electrical or structural safety of the model, or if you do not understand these directions, do not
use this model.
