i think there is something not accurate at 3:25 sec Force equal mass multiplied by acceleration so F = m*a you assumed 5 L so the mass is 5 kg so F = 5*587.5 = 2937.5 N or you considered 50 liter?
FUELLESS HEATER NO FUEL NO GAS NO WOOD NO GREEN HOUSE GASES theoneagain - 2,121,159 views..... ID&C has developed a Hydrogen device for this Water Hammer. we call it the Turbine Hydrogen Hammer by ID&C LLC We basically sliced the device in to slices to conduct Hydrogen.