Flow control for filter feeders

[coldwatertech90]

Does anyone know of a timed VFD I can use to slow down my main pump while my dosing pump runs in order to give my filter feeders a chance to eat before the supplements are cycled through the system? I would like it to slow down the flow for exactly the same time the dosing pump runs.

 

[SuncrestReef]

More details, please. What type of controller are you using, and what model of pump?

 

[coldwatertech90]

The pump is a Danner model 24. I don’t have a controller. I want to be able to slow down the pump rpm temporarily while dosing. I’d like to do this with a timer so I don’t have to manually.