I had something similar. Worked fine for say a citrus prewash but didn't work so well for snowfoam. It also tended to run out of product if I tried to spray the whole car. I have since binned it and bought a 5l sprayer thing from elitecarcare which I now use if I haven't been able to wash my car at the weekend and allows me to presoak the car at the local supermarket's petrol station.