Given emerging technology â and a contracting economy â health plans are looking hard at whether carve-outs for pharmacy benefits, disease management, specialty pharmacy, and behavioral health care are worth the money.
1 The speed in high-grit sewage handling systems should not exceed 12 ft/sec. 2  The flow and velocity in sewage systems with low grit concentrations should not exceed 18 ft/sec.
Jupiterimages/Photos.com/Getty Images. No matter the material from which it is constructed, a sewer drain is certainly an item you want to have work correctly. When it comes to sewer drains, bigger does not always mean better. Correct pipe sizing ensures quick flow of sewer waste away from the house.