On 7/18/2008 9:15 PM Steve Barker DLT spake thus:

"AE Todd" wrote in message
...

I tried out my new Zoeller non-automatic .3 hp sump pump, and the
instructions say to drill a 3/16 hole on the discharge pipe about
equal to the top of the machine. I did this, and not only does it
reduce the discharge pressure, but it makes an irritating spraying
sound when the water level drops below that point and the water sprays
against the side of the pit. Instructions say that this hole is
required to deal with air buildup when used in conjunction with a one-
way valve. Does anyone have an opinion on if the hole is really
needed?

the hole is not needed.

What he said. I've installed two of those same pumps, and the people at
the plumbing supply store I bought them at said to ignore those
instructions. They work just fine without any extra holes.

Go ahead and plug the hole (find a screw and mash it in, or drill & tap
if you're a little more on the anal side; stainless screw for
perfectionists).


--
"Wikipedia ... it reminds me ... of dogs barking idiotically through
endless nights. It is so bad that a sort of grandeur creeps into it.
It drags itself out of the dark abyss of pish, and crawls insanely up
the topmost pinnacle of posh. It is rumble and bumble. It is flap and
doodle. It is balder and dash."

- With apologies to H. L. Mencken