Typhoon Lagoon Umbrella Rental 4 adults one child under 3

[JungleCruiseFan]

Hi, long time Disney fan, we go as much as we can and have another stay coming up in a few weeks.
I have a question about the Typhoon Lagoon umbrella rental. We reserved one but we have 4 adults and one child under 3 who does not need a ticket. I have been told 2 different things by 2 different people on the phone at Disney. Anyone know which one is accurate?
First answer was no I can't rent one with 4 adults and a child because it's only for 4 people.
Second answer was yes I can because the child doesn't need a park ticket so she doesn't count towards the 4 people.
I went ahead and reserved one with the second person I talked to but she just put us down for 4 people.
I don't want to get there and not be able to use the rental. Any help is appreciated. Thanks.

 

[shaneray]

I wouldn't worry about it, If it was me. When you check in go by yourself and they will confirm for 4 people then give you 4 wrist bands, towels and your locker key. The CM's don't monitor who goes in and out that I've ever noticed and I'm 99% sure, even if they did they wouldn't turn you away because your under 3 yr old doesn't have a band.