Money flow is not from the 2nd house. The second house is your accumulated wealth, that you obtain over a period of time. It is your dhana, what you believe precious in life. It represents your bank balance, not cash transactions.
Cash flow in your 11th house. The house of income and gains. How strong is your 11th lord will determine how much cash flow you can have. When 11th lord conjoined any planet. then that planet will also help earn cash, provided the planet is not inimical to the 11th lord.
Jupiter is the significator of both 2nd house and 11th house. That why we say with the blessing of Lord Shiva (Devata for Jupiter) no one can accumulate wealth.