Where should the ROWPU trailer be located if a stream is to be used as a raw
water source? ___________________________.
What is removed by the ROWPU multimedia fiIters when polymer solution is
added to raw water? _____________________________________
List the four chemical feed metering pump drive units.
Which fiIter removes most of the dissolved solids during the ROWPU first filtration
The Iine pressure must drop below ________ psi before the reverse osmosis
pump shuts down during the ROWPU second fiItration phase?
28. Which elements perform the final stage in ROWPU fiItration?
During the third fiItration stage, the water, stiII containing foreign matter, flows
through how many other pressure vessels? _____________________________.
What is the water called that is rejected by reverse osmosis elements, and what
service does it serve? _______________________________________________
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