Beverages for 150

Are the drinks going to be available during the whole reception or just during dinner? That will make a big difference on how much I would make.

Will there be alcohol too? We use caterers concentrate tea and have 5 gallon cateraide drink dispensers. I'll make 5 gallons of sweet tea and 2 gallons of unsweet tea to start. We stock the 5 gallon jugs of water and if tea is getting low it's just a matter of filling the drink dispenser and adding the concentrate and give it a stir. I'd say for a 2 hour buffet with alcohol at the event you may go through 8-9 gallons of sweet tea and 2 gallons of un-sweet. I'd be ready with at least 15 gallons though. I've done hot summer weddings for 150 and used 20 plus gallons of sweet tea and a equal amount of water for a 5 hour event.