you're not supposed to restrict it, like with a valve. an elbow adds some
restriction yes, but not enough to count. you're only talking about a
distance of a few inches. it won't matter which end of the pipe you put the
reduction on, although it would be better if you used larger pipe and a
larger bulkhead all the way.

i have the same pump. i plumbed it with a straight from the bulkhead to the
intake, an elbow pointing down in the sump to draw from the bottom of the
sump, and straight up output to my returns.

"Pszemol" wrote in message
...
"Charles Spitzer" wrote in message
...
it doesn't matter. what matters is the output side, and you want
that to be as straight as possible to prevent extra head loss.

Are you sure? I heard you should not restrict pump intake.
It would shorten the life of the pump.

I wonder, if I'd put the 1" elbow it would be lesser restriction
than if I put reduction first and then 3/4" elbow near the pump...