EZ Cloner Pump Size?

I building my own EZ Cloner with a 5 gallons bucket and 8 netpot sites. My plan is to have 4 EZ Clone sprayers but need to know the size of pump to supply it. Ill be running a timer for 1 minute on 5 minutes off. I estimate about a 40GPH, will this produce enough force for the sprayers? I can always overkill it but thats added cost and more important temperature.