Turn off the supply water to the machine..........

does the leak stop?

think aobut the installation /situtation; try to isolate the behavior

is the machine off? or are the supply shutoff vavles off/

even after the shutoffs are off the hoses are presurized

witht the valves off, start a warm water wash to de-pressurize th
hoses; after the a few seconds shut the machine off leak

check hoses for leaks, bad condition, loose connection at machine

the website will help, get a repair manual ~$15
http://www.repairclinic.com/

this fix is probably easy unless you have a rusted out tank; I guessing
hoses

the rest of your questions..yellow pages

my guess on the service call & repair ~$100


cheers
Bob