Drive-in access for on-road equipment at least 12 ft (3.7 m) wide. The ground must be fairly smooth and clear.
A work area at least 35 ft x 70 ft (10.7 m x 21.3 m) is required for equipment maneuvering and set-up.
A cleared path to the water source at least 3 ft (0.9 m) wide.
A work area no more than 20 ft (6 m) above the raw water source.
A raw water pump level no more than 15 ft (4.6 m) above the surface of the water source.
A parking surface for the Water Purification System mounted on the trailer no more than 200 ft (61 m) from the raw water
pump. Grade of parking surface must not exceed 2 crosswise and 5 lengthwise. The storage tanks must also fit on this
A place for the raw water pump 10-20 ft (3-6 m) but no more than 30 ft (9 m) from the waters edge.
A water depth which will allow the intake strainer to be no less than 3 ft (0.9 m) from the bottom of the water source. A
water depth of 5 ft (1.5 m) or more is preferred.
When positioning the trailer, the raw water point is to be at the right of the truck cab.
Well Water Source. Avoid wells which are encased with steel or which use steel piping. Iron will rapidly foul the RO elements.
Wells which smell of iron or sulfur must be avoided. Any well water observed to leave significant residues of salts must be
2-14. ASSEMBLY AND PREPARATION FOR USE. The purpose of these instructions is to provide procedures which will allow the
full crew to unpack and fully deploy the ROWPU.
Location of Loose Items. Loose items are shown in Figure 2-24.
Ready Trailer (Figure 2-23).
When positioning the trailer, the water point is to be at the driver's right.
Move trailer into a position at the work site which will allow front end to be slightly lower than the rear for water drainage.
Trailer must also be positioned so that there is no more than a 2 side-to-side grade. Place wheel chocks under wheels to
prevent trailer movement.
Figure 2-23. Positioning Trailer