DaStaCo effluent alkalinity?

[Mark Novack]

My alk has not been keeping up with demand so I measured my output. It is 24 to 25kh. That seems soft. Opinions as to what I should see?

 

[T-J]

IIRC, alk effluent should be between 20-30dkh.

 

[Mark Novack]

Thank you. I'm going to replace my tubing and gaskets and give the pump a bath. I can use a lighter weight media if necessary.