Hi, 

I have pixie for one year, the first year is was working perfectly. Nevertheless when i reinstall it this spring, I observed a frequent problem : 

when pixie start watering, there is like a air cavitation noise in the pixie and the pressure of the springer is almost zero, I have to manually turn off the tap then reopen it ( while pixie is still on) to recover the full pressure in the watering system. Meaning that the system is useless if i am not at home to each time turn off then on the tap. 

Can you provide me some tips to troubleshoot, and fix this issue?

Thanks