Ten product lines with only two glycol lines would be unwise. Glycol lines should always touch your product lines, with 10 lines this wouldn't be possible. Your figures are incorrect, the trunkline length is what you need to go by. Your trunkline total is 160 ft., x 1.5 equals 240 ft. You can use a 250 ft. unit with two pumps or two 125 units.
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