I am planning on running tubibn through a small bush this winter, around 400 taps all said and done. I don't think i will have enough slope for a 2% slope on my mainline, so i am looking at sap ladders. I will have 7cfm vacuum pump attached with releaser and moisture trap at a couple of 250-gallon dairy tanks for in-woods storage.

My question is, can you have more than one sap ladder on a length of mainline? Is it better to have more, shorter ladders, or fewer with more rise?
How many smaller tubes should one use for the ladder? I will have 3/4" mainlines, likely 2 splitting the total taps. Should 6- 5/16 lines rising at each ladder be sufficient, or should i have more?
School me, this is all new to me