Follow the Port Assembly Instructions described earlier in this Manual to proceed with the construction of the middle port. If longer screens are desired, slide the Port Guide Cutter up the tubing and make three more access holes for each extra Sand Cartridge you will use. Clamp on the appropriate length of screens to cover these inlet holes.
Ports 1 and 3 will not be assembled until after all the Bentonite Cartridges on either side have been installed.
