These recessions here are a mystery to me

I have used the pump only 2x and already the second time the hose is cracked where it is pressed into the valve piece. And I've always respected, to bring no train on the tube, was simply due to the heat.

I also had the plunger from the sleeve fishing (without tools in the Pampas), which is plugged at the front because he had detached from the pump rod.

My opinion: billigster Chunk if I have an accident yourself, I need to fix what Puncture Proof selbiger ...