One Sanso 24V Pump brings ~ 295 Liters/h. flowrate with this setup and 2 of those pumps ~ 400 Liters ! But beware, the pumps makes a lot pressure, for example: you need tubing with 10mm id and 13mm fittings AND clamps !!
Yeah, the pump is that loud, but on the other hand, when using 2-3 Laing D5 with full speed, those combination is loud too.
