City of Boca Raton, Water Treatment Plant, Florida Pumping 40% Lime Sludge Case Study At Boca Raton WTP in Florida, a Discflo disc pump has successfully replaced two progressive cavity pumps. The pump, a 604-2HHD, is being used to pump 35- 40% lime sludge - a byproduct of the water softening process, which is settled out the water in clarifiers. The City experienced yearly repair bills on each of the PC pumps of $4000-$6000 due to the

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