Looses prime

[chriss4655]

I'am having a issue with my system only when it get really hot outside 85 dregress and hotter! I have a SMC progressive kit, New pump diaphrams ( From Steve ) and have replaced the check valve at the nozzel ( also from steve). I have to prime the system with the test button all the time. This only happens when the weather get hot!!! It's like the meth evaporates in the line to the pump. ????????????????

 

[chriss4655]

I have moved the pump away from the down pipe and in front of the battery, just had to extend the feed line, I'am thinking the extreme heat of the DP plus the hot weather is causing the problem, the system works flawless when it cooler outside!