Technical Report

At the time if the first visit, 2004, the trip report stated "The boat is equipped with a 1.5 HP pump that lifts water from the Rio Negro into two tanks located on the third deck (top) of the boat. The water in contained in a 1000 L and a 500 L stainless steel tank. This water is delivered by gravity to the kitchen (for dish and hand washing) and to the bathrooms (sinks and showers). In addition, this water is used to wash medical and dental equipment prior to sterilization.  The boat is also equipped with an electrical generator providing 120 V, 60 Hz service to all three decks."

With the new equipment, it now has a new 1000 liter plastic tank to replace the 500L stainless steel one, a Viking Mountain home filter system consisting of a 25ug and a 5ug filter mounted on a 1/4 in steel frame that serves both tanks, the new Applied Membranes Inc., AA-22521 Reverse Osmosis System and GermicidaLight Ultraviolet Water Sterilization (UV) unit to purify and disinfect the water going to and dispensing from the new tank (Tank #2)  All the parts are mounted to the steel deck or handrails by welding.  The power source is from the 2nd deck.

To protect the system from the weather, a frame of angle iron was constructed.  The cover was not completed during our visit, but the Captain and the welder assured us that it would be finished upon return from their current mission trip.  During the interim,  a plastic tarp will be used.  I have contacted Pastor Djard about the status of its completion and the operation of the system during the current trip.

The crew understands that the only water that we recommend they use is from the Rio Negro.  The crew can operate the system and understands the flow process. (See Flow Chart below)  They also have filters and membrane cleaner cartridges to maintain the system for at least a year.  This installation represents what John and I consider the most optimum use of space (an almost perfect installation), but do not think that this situation would present itself very often.

The flow rate checked at the 29 gallons per hour maximum and there was no need to do any adjustment other than set the control valve at 150 psi.

The new tank and existing water lines were shocked with chlorine prior to filling the tank for use. Only 3 leaks resulted from the installation, with only one of these requiring a visit to the 'spare parts bag'. 

Note: If not affected by the obstacles cited in the Information Report, not to included a National Election Day and a broken toe, we would have beaten the estimated half day installation time by at least an hour. (2 good ole boy's reply to an 'inside joke'.)

Submitted by Bob Friley and John Grambling, October 15, 2006