My water pump is used very little. When sanitizing the system, the pump started leaking either on the barb fitting on the outlet side (which is all plastic with a hose clamped on it) or from the bottom of the pump itself. I can't really tell. I tightened the hose clamp a bit more but I'm afraid i will break the fitting if it gets too tight. Would the pump leak if it was worn out? Any suggestions?