requires positioning the PDDE along the roadway, ready to dispense hot,
Contaminated vehicles move up to it, get sprayed, and move
The company supply section drops off supplies and returns to the
company area. Two soldiers from the contaminated unit set up a MOPP Gear
Exchange. Both the Vehicle Washdown and MOPP Gear Exchange should be set up
to operate concurrently.
If water for the M12A1 PDDE has been preheated,
setup will take no more than five minutes. The M17 SANATOR will take longer
if a water bladder must be filled.
This phase is the actual implementation of the two techniques of this
operation: the MOPP Gear Exchange and the Vehicle Washdown.
commanders must maintain proper intervals between vehicles as they move
their vehicles through the site.
Ensure vehicle operators have visual
contact with one another to know when to move from concealment to the
washdown area. There is only one station in the Vehicle Washdown technique.
The PDDE operators signal vehicles into position. All personnel in armored
vehicles should stay buttoned up within their vehicles.
wheeled vehicles should dismount to avoid getting wet.
Each vehicle gets about a two-minute Vehicle Washdown with hot, soapy water
from the PDDE. Following this, the vehicle moves to the MOPP Gear Exchange
area. Soldiers dismount and conduct the MOPP Gear Exchange as a squad or
combat vehicle crew.
This technique is done by squads or crews so that
leaders can control the rate of overgarment exchange and be able to maintain
adequate stocks at company level. Two soldiers can work as buddies and do
the technique by themselves.
However, when squad leaders supervise, they
can prevent unnecessary exchange of MOPP Gear.
When using the M24/M25-
Series Protective Mask, the MOPP Gear Exchange is best performed using teams
of three soldiers each.
This will allow one soldier to hold the filter
canister while one soldier assists the other during the exchange.
soldiers would then rotate until all have performed the MOPP Gear Exchange.
When finished, soldiers mount their vehicles and move to their new battle
Commanders may choose to exchange MOPP Gear at the new battle position.
This will get the troops to the fight faster, but accomplishing the exchange
may be more difficult and may spread contamination. For planning purposes,
figure the processing rate for equipment at one vehicle in two minutes; for
the soldiers in the squad, 30 minutes. For a squad-size element, plan 45 to
60 minutes for vehicles and personnel if they undergo both techniques