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To: lacrew

Sewer pipes are usually placed at as low a slope as possible, and need at least 2 feet per second velocity to “self-clean” at a given rate of flow. Being a non-pressure system, either a steeper pipe slope or a higher flow are needed to move things along and prevent clogging.

If the new toilets produce a lower flow per flush, then velocity drops below 2 fps in the main, and things pile up in the pipe until enough flow develops to flush things through...


99 posted on 02/28/2011 10:05:45 AM PST by castlebrew (Gun control means hitting where you're aiming!)
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To: castlebrew

“If the new toilets produce a lower flow per flush, then velocity drops below 2 fps in the main, and things pile up in the pipe until enough flow develops to flush things through...”

Toilets are a very minor portion of the water in a sewer...sinks, dishwashers, washing machines, etc....etc..


100 posted on 02/28/2011 10:22:38 AM PST by lacrew (Mr. Soetoro, we regret to inform you that your race card is over the credit limit.)
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