is there a way to make it not loose its prime? maybe a valve or something? do i maybe need a bigger hole in the lid on the resevior? maybe its sucking a vacuum and when i let off it sucks the water/meth out of the line?

 

put the pump as close to the tank as possible. if it still has issues look for restrictions on the suction side of the pump.

 

What kind of meth kit is it?

 

its the sts one. i have it mounted close to the fire wall on the passenger side. never had a probplem till this weekend. when i went to 13psi. but when i go back to 10psi it does the same thing. i took it out today and it was fine all day. and i just took it out a minute ago and it was fine. 13psi and 17*timing is fun.