The input water hose in my toilet tank keeps getting dislodged. The pressure of the water coming out of the hose pushes it out at the canister it should fit into. I have heard that there should be some sort of clip to hold the hose in place but I’m on familiar with the term I should use when I go to the hardware store -how do I ask for such a clip? Also I’ve been told that the hose itself may have gotten stiff over time and I could replace the hose, but how do I know what diameter? what do I ask for? THANK YOU SOOOO MUCH!!