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how can i use water flow as input for a controller ?

psychotik2k3

Junior Member

how can i use water flow as input for a controller ?

Dienstag, 2. Dezember 2025, 13:52

Hi i have an aquaero 5 pro , with a d5 next and a mcp35x as pumps (aquasuite X.59 )
for now both pump are on a preset value controller set with 30 percent.

sometimes my MCP35X don't starts because the flow is too low combien with a low power and the restriction of the gpu block and radiators right after it.
and the way to help her is to momentary raise the power of the d5 next.

how can i create a controller (either curve or setpoint) which will take not a temperature but water flow as input. i mean we don't care about the unit, only trhe value and the setpoint value. so why can't i choose the flow ?

thanks for your help

Shoggy

Sven - Admin

Dienstag, 2. Dezember 2025, 16:22

Temperature is the only unit that can be used for such controller settings. So, if you want to use the flow rate, you would have to use the playground to set up a virtual software sensor and convert the flow rate into some fake temperature. This value can then be assigned to a software temperatue of the aquaero or D5 NEXT which will be also available as a data source for the controller settings afterwards.

Well, in your scenario I would maybe try to go a different route. You can use two different profiles for the D5 NEXT pump: One with your standard settings and the order one as some sort of flow booster where the power of the pumps in increased. In the playground you can setup an automatic profile switch based on a specific flow rate limit. If the flow rate is below XX l/h it will activate the flow booster profile and when it passed XX l/h it will switch to the standard profile.

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