So I finally bit the bullet and purchased the Axis specific Hi-FLO front and rear ballast upgrades from Wakemakers for my 2013 Axis A22. I went to install them and looked like this

when I opened the box. There are 5 holes on the rear ballast and what looks to be only 3 tubes to attached from my PNP system. 1 drain tube coming from the rear of the compartment (stern), 1 drain coming from the front of the compartment (bow) and 1 fill tube on the port side of the compartment, opposite of the engine. 3 in total. Wakemaker provided quick attach connectors which seem relatively easy to attach. What am I suppose to do with the remaining two ports? I do not see any included plugs to cap off those holes. Am I missing something? I tried to call for support but closed on the weekends. Any help would be much appreciated!