Hi all water is zero first clean of the day looks like there’s suds
on the glass or air bubbles after two windows it’s fine any ideas why thanks Andy
The pure in your hoses dissolves chemicals inside the hose and the water bubbles till it's washed through. Happens more the longer you leave it in there and the warmer it is. After a summer break it can be quite spectacular.
As the hose ages it becomes less of a problem.
After a break or the weekend on the first clean I tend to connect as I leave the van so it's run through by the time I start actually cleaning. From the pic below, I'd suggest it could leave marks if you don't run it through.
From ages ago, a comparison of pure left in the hose for the best part of a week and water run fresh.

Vin