Ok, So it looks like I have got my system working perfectly with minimal water lag. I put the check valve and "output" pressure sensor within 6 inches of the nozzle, system works quite well like this... Car sat all weekend and the initial boost run showed the the nozzle started producing water within 0.5 seconds, better than my old setup at 2 seconds.
The output hose does indeed leak water, so the idea is to minimize the water leakage, and to minimize the needed volume of water to get the system primed again to avoid the initial system lag when it has to refill the output hose.
My old system, the output hose was 4 feet, now its 6 inches. system works great now... Here's 3 pics of the pump, nozzle setup, and arming switch with diagnostic led's.
LED status indicator recap...
When you go WOT this is what the led's tell you...
1. pump led on + output led on = system is working.
2. pump led on + output led off = out of water or a hose came loose
3. pump led off + output led on = clogged nozzle (when you exit WOT the pump led turns off, if the output led stays on for a while something is wrong)
4. pump led off = wiring fault or pump bad
