Hello guys,

I'd like to make my own smoke pump setup for a couple of jets.

I bought some SS tubes 1/8" ID, and i have a Sullivan Skywriter smoke pump with a small 7.4V lipo.

A few things i want to know:

1. why is everyone using 2 injector tubes ? isnt 1 enough ?
2. the crimp in the end of the tubes, whats the width of the slot i need to leave open ?
3. do you use the full pumping power of the pump (its variable from theTx of course) ?

Any tips would be welcome.

thanks.