Strange leakage from Jobo CPP-2

I have a Jobo CPP-2 that I am beginning to use with decent results.
I level the Jobo by placing the level on the bottom of the upper basin (the red one) and my Jobo appears to be correctly levelled.

When I pour chemicals in it through the "lift" I notice, some 4 or 5 seconds after pouring, that the sink pipe of the Jobo throws liquid.
The sink pipe is typically already trickling before I pour, but some seconds after I poured the chemicals I can clearly see some accelerated dripping.

That is particularly evident when I pour bleach, which is dark, so I know that what is dripping is actually the bleach I have just poured into the lift.

No big quantities, but certainly a bit disturbing, and worth of further enquiry.

Do you observe the same effect? (Please do check next time).
Do you level the Jobo by placing the level on a different spot?
Is this a problem with the red gasket on the lift?

Thanks
Fabrizio

Per the manual, if you fill too quickly it will overflow. Pour more slowly. For me, when doing a process with 900cc, it takes quite a while to get all the solution into the lift, so I adjust my timing appropriately.

Thanks a lot. I'll place the level on the tank (Jobo 1510) and will pour more slowly.