Carx ph spiking

[Millimylilly]

Hi all, my Solenoid is set to 7.18 to 7.2 ph for inside the reactor. It seems every day there is a spike in ph somehow. The recirclation pump is always on and the feed pump is always on. Can anyone help me troubleshoot this please?

 

[GoVols]

Hello,
Just tossing it out there...

To me 7.2 on and 7.18 off are too close of a range. That's only a .02 variance gap to work with.

If I'm at 7.2 on then off is at 7.1

So, if I were at 7.18 on then the off would be at 7.08, and so on.

Maybe your solenoid is over heating from turning on and off too much and has a built in overheat protection???

Can you try to find your right melting point, with your settings being a full (1) decimal point apart?

If that does not work, clueless.... :confused:

 

[vhuang168]

Did you log the solenoid output?

Have you compared the tank’s pH to this graph?