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Dittohead: But the documentation is in error, the certification is fine, but documentation did not get QA'd

Page 21 in the 7000STX service manual has flow rates VS system pressure for all of the injectors. The brine draw rates do not vary with pressures above 40 PSI and then only for nozzles #3 and larger. All charts cut off at 20 PSI.

Bulletin 559 from from 2008 and a similar document from 2007 are wrong. Fleck has injector #3 as a part but the sizing instructions do not use #3 injector for any size of tank. If you plot injector CFM vs a tank's bed area you see an obvious error. If you change 16" #1-->#2 and 18" #2 --> #3 you...

And thanks for your reply!

I understand what you are saying. But a higher C system in a larger diameter tank can have the same bed depth. I see BD=60 many times in this forum. So why should a larger C system take longer? If a system regen's very slow, I would expect that the top of the bed would be deeply regen'd and the...

System: 16x65" tank 3.75 CF Dowex HCR S/S, nominal 120,o00 grain 75 PSI regulated 10 grain average hardness, no iron Supplied trim: #1 white injector, BLFC=0.25, DLFC=7.0 Target regeneration is: -8 pb/CF NaCl. -10 gallons brine fill/draw -27,000 grains per CF regen capacity at 8 lbs NaCl/CF...