TeeJet TASC-6600 - Manual (Page 68)

C-10
TASC-6000, 6300, 6600 98-05010
Rev. - 1
The Mid-Tech tanks comes complete with a chemical resistant, quick disconnect coupler. The product line between the
tanks and the injection pump should be at least 1/8 inch larger than the tubing size in the pump, and it must be fitted with
a mating coupler (available through MIDWEST TECHNOLOGIES). It is also recommended that a nearby fresh water
source be fitted with a quick disconnect nipple similar to that on the Mid-Tech tank. The injection pump feed line can
then be disconnected from the tank and quickly connected to a fresh water source for flushing the injection system.
C.7.2. GENERAL SUGGESTIONS FOR PLUMBING CHEMICAL TANKS
Line sizes should be at least 1/8" larger than the tubing size for the injection pump. As a general rule keep all plumbing
as short as possible, long lines will affect pump capacities and make calibration difficult. Try to keep the bottom of the
tank and the injection pump on about the same level, or the tank slightly above the pump. Too great a difference in
levels between the tanks and the pumps (where the pumps are mounted higher on the vehicle than the tanks) can result in
reduced maximum pumping rates.
The Peristaltic Injection Pump draws chemical from the chemical container by creating a vacuum at the suction side of
the pump. In some cases, this vacuum is strong enough to pull air into the suction line through fittings that appear
“tight”. Air leaks adversely affect the calibration of the pump, since air bubbles take up space that should be occupied by
chemical. This phenomena is most pronounced at low pumping rates and typically shows up as under application in the
field. Ensure that all fittings are sealed with a good quality, liquid pipe dope and are properly tightened, especially the
suction lines. Make sure that hose barbs are clamped tightly.