ronemca
Well-Known Member
- Thread starter
- #16
* * Update * *
I reached out to the nice folks @ SP, and they were very prompt & helpful in providing clarification on these issues. Below is an abbreviated copy&paste of their response to my questions:
You are right that you will not have an issue with siphoning since you are mounting the nozzle before the throttle body, and back feeding should not be an issue. The gravity feeding we mostly worry about can occur if you are parked nose down on a hill; while on level ground the tank may be lower than the nozzles, on a hill this may not be the case. If you are comfortable making sure how you are parked at all times you don't need the solenoid.
The system will work just fine without a solenoid - it comes with a check valve to prevent any boost pressure from back feeding the system and preventing back flow of any fluid.
We have never used a relay between our controllers and pumps - the controller sends a PW signal to control how hard the pump is pushing fluid , a relay would defeat this purpose.
So there you have it - straight from the experts!
I reached out to the nice folks @ SP, and they were very prompt & helpful in providing clarification on these issues. Below is an abbreviated copy&paste of their response to my questions:
You are right that you will not have an issue with siphoning since you are mounting the nozzle before the throttle body, and back feeding should not be an issue. The gravity feeding we mostly worry about can occur if you are parked nose down on a hill; while on level ground the tank may be lower than the nozzles, on a hill this may not be the case. If you are comfortable making sure how you are parked at all times you don't need the solenoid.
The system will work just fine without a solenoid - it comes with a check valve to prevent any boost pressure from back feeding the system and preventing back flow of any fluid.
We have never used a relay between our controllers and pumps - the controller sends a PW signal to control how hard the pump is pushing fluid , a relay would defeat this purpose.
So there you have it - straight from the experts!
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