Quote:
Originally Posted by soreshins
Air rises in the pipeline and needs to be vented at the high points or it impedes flow. Also let’s air in when emptying the line. They can have problems seating properly and can pass water so that would be an issue for re-pressurizing the line after repairs.
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What type of pressure would these lines be at? Obvious highest at the discharge of the pumps. Or is it just gravity based. I really know nothing about these pipes obviously.