I tried using these Floodsafe braided stainless steel safety hoses when the new washer arrived the other day and we could not get water to flow through them. So I hooked it up using the OEM rubber ones. I brought the hoses back to HD and the appliance guy said they will work, that I should try again, but slowly open the wall-mounted bronze safety valve rather than just opening it. I don't get it... I would have expected the safety valve to be open to pressurized water and when the water rushes too fast through it it would shut it down at the wall connection.
I'm going to try again this morning, and I thought that maybe I should pour some water in the the hoses before connecting to the valve?