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Test #02-010, P-100 Pump in Tandem Deep Water Dewatering Exercise on Scaffolding on DCETF Test #4

DAMAGE CONTROL ENGINEERING TEST FACILITY

(DCETF)
NAVAL RESERVE CENTER, BALTIMORE
TEST DATA

TEST NUMBER: 02-010 DATE: 26 July 2001
Set-Up 24- 25 July 2001
TEST TITLE: P-100 Pump in tandem deep water dewatering exercise on scaffolding on DCETF
Test #4
OBJECTIVE / Test set-up criteria: Dewatered flooded space using P-100 rigged in tandem. First pump (pump A) is taking suction from space, discharging into second pump (pump B) with a height of 30 feet above flooded compartment. The second pump discharges into Perijet eductor with a 4" collapsible hose on discharge of perijet and discharge 30 feet. The compartment B-1 was filled with about 5 6 of water equal to 1320 gallons and left with 1' (240gal.) of water for a total of 1080 gallons pumped.
DESCRIPTION OF TEST - RESULTS: This was the second test with two P100s in tandem while using Perijet to verify the dewatering results. Pump A discharge pressure was 40 PSI, pump B was 75 PSI. Time to dewater was 5:37 with a total of 192 gallons per minute dewatered. After space was dewatered, a minor kink was found at the lower section of the hose causing reduced dewatering. Extreme caution was exercised prior to commencing the drill to prevent kinks by securing the eductor and hoses with line, however, once pressure from the P100 reached the discharge hose movement occurred.
EVALUATION: U.S. COAST GUARD P-100 Pump
TEST TEAM:
webmaster@dcfpnavymil.org, NAVSEA 05L4
Dennis McCrory, NAVSEA 05L4
Dexter Vance, CSC
Creig Beck, NAVSEA
EQUIPMENT MANUFACTURER: W.S. Darley Pump Company
PHONE: 1-800-323-0244 Paul Darley
RECOMMENDATIONS: Pressure from two P100s in tandem can power a Perijet eductor, however, does not have the force to remove kinks in the hose should they occur. Extreme caution must be used prior to energizing eductors to prevent kinks.