Is there public transport nearby that goes to Falkirk wheel
You can go to Traveline (see Google) and enter Polmont in the From box and Falkirk wheel in Destination. You will have to ask the reception where the bus stop is and you need the Wheel's Visitor Centre. Select which time you want to go and click on that row. That will give you the bus numbers you require. There is one change of bus.
Get an answer from Premier Inn Falkirk East Hotel staff and past guests.