NIKKISO DBB 05.Conductivity dropping

[Maxence11]

Hello all,
I have an issue on a DBB-05 machine. Preparation of dialysate is ok. But when we start dialysis, the conductivity drops. Bicart cond is around 3.0 but total conductivity is dropping during dialysis.
Can someone help me.

[John Moore]

I assume you have rebuilt the acid pump with new seals?

[Maxence11]

Yes. Now it's ok.
Thank you very much