Preventing Spray Shadowing If there are components, such as shafts, agitators, or baffles inside a tank, the spray from a single spray ball may be blocked from contacting the surface (spray shadowing). The recommended solution is to install two static spray balls, so that the shadow effect is eliminated by the second spray ball – see Figures 2 – 4 below.
Figure 2: Spray pattern in an open tank.
Figure 3: Spray shadowing effect in a tank with an agitator.
Figure 4: Two spray balls installed to eliminate shadowing.
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