Syrup drawoff types

[mapledave]

I am making a homemade 2x6 with drop flues, and was wondering what the best type of drawoff works best. I have seen just a valve and spout out of the syrup pan, and have noticed many have an open or closed box area outside of the syrup pan for the draw off with a valve hooked to it. Please explain the difference as I am new at this. Thank you Dave

[Haynes Forest Products]

On the newer type evaps the draw off box and transfer boxes have a bottom that is lower than the rest of the pan bottom. They extend out past the arch rail and then down for total draining. One other reason is keep the liquid that is transfering from pan to pan from boiling.

[mapledave]

On the newer type evaps the draw off box and transfer boxes have a bottom that is lower than the rest of the pan bottom. They extend out past the arch rail and then down for total draining. One other reason is keep the liquid that is transfering from pan to pan from boiling.
Does the thermometer go into the pan or just the box. Also is the syrup the same in the box and in the last row before it gets to the box.

[sticbow]

My setup has 1/2 fittings for the drawoff and between the back and front pan. I am not happy with the flow from the back pan to the front pan when I am drawing off. Its too slow and makes me nervous!!
I would like to have the fittings changed to 3/4, but my usual procrastination has left me with little time to get someone to make these changes.
Im thinking that I could just change the valves and pipe to 3/4 between the pans and at the drawoff and this would increase my flow. Am I thinking wrong?

[Haynes Forest Products]

Mapledave the Therm should be in the pan itself. The drawoff box doesn't have heat under them so the temp wont reflect the true condition of the syrup.

Stickbow What size pans do you have. AS far as drawoff 1/2" should be OK. I have 1/2" on my 3X10 and its good. Now as far as between the pans YES I would go with bigger even 1-1 1/2 would be OK. You dont want to draw off so quick that you get a wave effect or batching going.

[sticbow]

Back pan is a flat 2x4 with 3 sections. Front is a 1x2 with 2 sections. I draw directly off the front pan. The front pan was suppose to be a preheater but I figured it would make more sense to use it as a syrup pan. Thanks for you help.