Simon McIntyre scored the only try of the game as Wasps overcame the Warriors 10-6 on Sunday at Adams Park.
Following the loss, Hill believes that his players will turn their anger into hard work over the coming few weeks.
"I didn't say a great deal to the players, otherwise I would have blown my top so I'll wait until Tuesday when they come in and we debrief them," said Hill.
"But they are clearly disappointed and angry but as long as we, and they, turn that anger into hard work over the next two or three weeks we will see what comes out of it.
"That anger I can assure you will be turned into the right direction to make sure that Sale pay for that when we play them at Sixways in about three weeks' time."
The Warriors face Bizkaia Gernika RT in the Amlin Challenge Cup on Saturday.