sir 4j, the system is equip with its own reservoir ,pump,vc controller,switch and everything needed in the installation,activating the system depends upon the user,just like NOs theres a switch when yuo want the system to function and a led indicator when yuor in boost..when the system is on, the vc controller relies on the boost level when to start spraying,boost levels are user programed yuo tune the controller when to start ex.6psi and maximum of 25psi..this will allow the controller to spray water and meth starting at 6psi and stops at maximum 25psi..usually it is addicting when yuor under meth(water/methanol)if yuo love speed, coz yuo will really feel the power it produces when the system is activated..the power it produces depends on yuor mixture..we have an exact measurement for each horsepower yuo want to get..it has a manufacturer claimed of 30-90hp depending on mixtures,,the system is made and tested in the usa and has a lifetime warranty..if methyl alcohol is not available yuo can also use denatured alcohol as a substitute..