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For a 48" C303 pipe (bar-wrapped concrete pipe) rated for 10' of cover, is it usually acceptable to use CLSM (up to 1' above the pipe) if the depth of cover is around 15'-20'? Thank you,

Hi all, Has anyone worked with tank mixing system from Jet Tech (was under USFilters and now under Siemens)? I am trying to determine if it is as good as the Rotamix jet sytem. We currently use Flygt mixers in wash water EQ basins (>0.01% solids), sludge EQ basin (>0.35% solids) and sludge...

Hi all, Has anyone worked with tank mixing system from Jet Tech (was under USFilters and now under Siemens)? I am trying to determine if it is as good as the Rotamix jet sytem. We currently use Flygt mixers in wash water EQ basins (>0.01% solids), sludge EQ basin (>0.35% solids) and sludge...

Thank you RWF7437 and kchayfie for your responses. Just to clarify, these "closed channels" are basically rectangular (or square) concrete pipes. Having a water level about 20ft above the inlet makes the "noncircular ducts" under 20ft of head until the water get to the filters where it enters...

Hi all, I am currently working on the design of a closed channel that is to convey flow from the Sand Ballasted Flocculation (Actiflo) basins to GAC filters in a 110 MGD water treatment plant. The original design called for two (2) 72” pipes. Now we are looking at concrete channels instead of...

HI, I was wondering what the usual procedure (if any) was to connect a 72" concrete pipe to a 72" steel pipe? I looked online but didn't find any reatrained joints that would do the trick...