I have been running several shurflo 4008's for the last 5 years. One section has a total of five, 3/16 laterals, 7-17 taps on each, total of 60 taps. One of these laterals has 17 taps and the shurflo pulls that sap uphill about 4'over the 250 length. Some of the other laterals have 10-20' drop after the last tap. A couple are pretty level. 4 laterals come in from the east and the low lateral comes in from the west. I have a vacuum gauge on the manifold, which is made from 1/2" pvc fittings, I'm pulling 25"/Hg on the whole system, on a good day I get 150 gallon off of 60 trees. The longest lateral is a little over 800' long. I have a valve on each lateral at the manifold so I can isolate and repair leaks. This section of woods have both reds and sugars, and I have the reds on their own laterals so I can turn them off at the manifold when they bud out.
'12 15 jugs - Steam pans
'17 125 3/16 - 18" x 72" drop flue on homemade arch
'18 240 3/16 - Deer Run 125
'19 450 3/16 - Converted RO to electric/added a membrane
'20 600 3/16 - Maple Pro 2x6 Raised Flue, added AOF/AUF
'21 570 3/16 - Built steam hood, Smoky Lake filter press
'22 800 3/16 - Upgraded RO to 4 4x40
'23 500 3/16 - Re-plumbed RO, new "Guzzler"
'24 500 3/16 - Steam Away, DIY 8x40 RO