Radiator Hose Problem

[Gonzo03TJ]

tonight I was doing some stuff under the hood and I noticed that my supply hose from the radiator to the thermostat collapsed, thinking my fluids were low I checked and they were fine and the hose came back to shape, the motor hasn't been over heating. any idea what causes this and is it time for a new hose
Thanks

[CJ8Ted]

Maby junk in the overflow bottle making it hard suck the fluid back into the rad.
A new cap is well worth the $ when your replacing that soft hose.

Ted