To replace the hose on your Ryobi backpack sprayer, follow these steps: – Turn off the sprayer and disconnect it from the power source. – Release the pressure in the sprayer by turning the pressure relief valve counterclockwise until no more liquid exits the nozzle. – Locate the hose and remove it from the sprayer by carefully pulling it off the inlet valve – Take the new hose and attach it to the inlet valve by pushing it on firmly until it clicks into place – If necessary, use a hose clamp to secure the connection between the hose and the inlet valve. – Turn on the sprayer and test the new hose to ensure it is functioning properly.