[Da Kid]

Tanis, by the way you answered the questions it seems you have a different set up than we plan.

this is what we are planning to do:
Main tank(120 psi)-->pressure regulators-->A secondary tank for each of the three barrels(different psi's)-->Sprinkler valve-->actual barrels.

and we haven't bought anything yet so i am actually asking what would be a good size for the main and secondary tanks for three barrels (there will be plenty of time to recharge after each set of three shots). what has worked for other teams in the past?

and one more question. if the whole system is pre-loaded with an actual compressor to 120 psi and the kop one is just used to top it off is that still too much for the kop compressor?