Water meth pump to ecu wiring

Hello. I have motec m150 ecu and ineed wire the water meth pump to ecu with fail safe any one can explain haw can do this .

Or ineed best way to wire the water meth with fail safe

my plan is wire the pump to relay like fuel pump and put in line fuel pressure sensor its will work ?

Hello Bo there is some great threads already about this by typing water meth fail safe into the search bar above

https://www.hpacademy.com/forum/general-tuning-discussion/show/watermeth-fail-safe#post15579

Regards Ross