We just bought a used evaporator (3x12) last year. There is a big flue pan at the back... and two finishing pans at the front of the evap.

I know that lots of people are drawing just little bit of syrup at each draw, they open the valve at 7 and close it when it start to go down. On our evap, we can't do this... When our thermometer goes to 7... we open the valve... then it start to go up... sometimes up to 12!!! So to compensate, we will let draw until it goes down to 6. We normally have big draws off of about 3 gallons!

It look like the syrup is overcooked somewhere in the pan and is just right at the draw side... and I have the feeling it gives us a darker syrup this way...

We would like to have smaller draw off, more frequently but we can't get it right...

We check the level of the evap, and it's dead on...

Anyone have any advice on this?