I built a new trailer a couple of months back and I'm having trouble with the water not coming through pure for the first few minutes each day. So I fill the tank and the water is definitely at 000 but first house of the day every day, the water looks a bit frothy, with little bubbles running down the glass. I've tested that water and it's usually at 003. I've tried just using it as it is on my own windows and it does leave specks so it's a bit annoying that I waste time every morning just pumping out water. It runs clear after about 3-4 minutes and is then back to 000 for the rest of the day. I'm guessing it's to do with the water that has been sitting overnight in the pump or hose, but I'm surprised that a couple of months on its still doing it. All the components of the setup were brand new, if that makes a difference. Any ideas?