Getting ready to add an automated dosing pump to my hot tub. Does anyone know if it's possible to tie the dosing pump line to a plumbing line on the tub. I have a 24-hour circulation pump that runs through a frog inline port on the tub but was unsure if that line would work. I am planning on a check valve to prevent back pressure through the pump. I hope the pump could overcome the pressure of the hot tub pump while it runs. Then I would not need a see a tube runnign up the side and over the top of the tub into the water. I ordered this pump