Pressure Washer noob question...

I just picked up a 2.4GPM 2500PSI gas powered pressure washer from Princess Auto on the weekend and Id like to run detergent through it. The washer came with a clear suction hose with a filter on the end and I picked up a 4l jug of phosphate free detergent. QUESTION: The jug claims i need to mix/dilute the detergent with water. Can I just put the hose right into the jug and draw from it or do I need to premix it and draw from a bucket? The manual doesnt specify and I just want to avoid damaging anything on the pump.

Thx!

I always just stick the suction tube in the soap and wash away.

If you are worried, just make sure you run water through the pump before you put it away.

Appreciated, thx! ^^