Aquaponics system Dorset UK

[Tina Cresswell]

Hi we have set up in our poly tunnel, a 1300 litre fish tank, 50 organic carp, with five x 135 litre grow beds and a sump tank. We are ready to start the plumbing now, so we are making the autosyphons for each growbed and the pump will be in the 135 litre sump tank. So, the fish tank will overflow (do I need a ball valve here?) in to sump tank, the pump will send water up to Grow Bed no.1, (autosyphon drains into wider waste pipe going back to fish tank) then no.2, (autosyphon drains into wider waste pipe going back to fish tank) then no3,(autosyphon drains into wider waste pipe going back to fish tank) then no4,(autosyphon drains into wider waste pipe going back to fish tank) then into the last one over the fish tank and autosyphon drains into wider waste pipe going back to fish tank with the waste pipe water from the other grow beds. Any advice re capacity of pump or can any one see any gremlins?

Hope you can help!