Q.Planting a bismark palm
I noticed that directions say to water heavily with like 25 gallons of water twice a week. If I have a 7 gallon palm does it need that much water?

Watering a newly planted Bismark Palm depends on if it has leaves or they have been removed.
If your palm has it's leaves it is recommended that you water it 20 to 25 gallons 3 times a week for 4 weeks.
Water is twice a week in the next month, and then once a week in the following month.
Stakes are generally removed in the 2nd or 3rd year.
If the palms leaves were removed, the water amount is doubled to 50 gallons.
https://www.gardeningknowhow.com/ornamental/trees/bismarck-palm/growing-bismarck-palms.htm