Tanker Operations #13 - LDH Appliance Use at Fill Sites
By President Mark Davis
March 16, 2017
After reviewing the more than 50 tanker shuttle drills that we have posted on this site it is pretty clear that those folks who can load tankers using LDH are the same folks that perform quite well at delivering the higher flow rates at the dump site. Effective use of LDH requires the use of LDH appliances. At our 2013 water supply drill in Jarrettsville, Maryland - all of the fill sites used LDH to load tankers. In the photos shown here, we see the Jarrettsville water supply unit take draft from a remote pond and supply water out to a parking lot area where tankers are then loaded using 5-inch LDH. An LDH manifold and jumbo wye were used in combination to support the loading process while also providing a large drain to expedite disconnect operations at the direct fills.
A 3-person loading site operation. One person operates the control valve and two manage the fill lines.
The water source pumper laid 5-inch LDH from the parking lot area back to the pond.
With the jumbo wye connected in this manner, the short length of yellow hose is used as a large drain to speed up the disconnect operation at the tanker's direct fill intake.
All set up and ready for a tanker to arrive. The use of the jumbo wye in combination with the LDH manifold made a big impact on the efficiency of loading operations.
Jarrettsville VFC's source pumper - a pumper specifically designed to support water supply operations.