Re: Increase Waterfall Flow? How about Pondmaster Waterfall Pumps?

Welcome to the group.  There are about four things that affect the flow of
the water in the system.  One of these is the size and type of pump.  The
next is the size of the pipe.  The intake resistance of the prefilter.  And
the height of the water column.  The pumps have a maximum head pressure that
they can pump to, and from the low head with high flow to a high head the
flow drops significantly.  You say the height of the waterfall is 6 feet,
and that would be your static head.  There is a friction head of the water
flowing through the pipe, and increasing the size of the tubing will
significantly reduce the friction head, and if you decide to enlarge the
pump, you definitely want to increase the pipe size, since the friction head
will go up more with more flow.  There are some table on pipe friction on
some of the web pages like the page for the Sequence pumps that will show
how much head pressure you are fighting and what you would gain by
increasing one size or double the size.  The Pondmaster website has
performance curves for their pumps that show the number of gallons pumped at
different head pressures.  Hope this helps.
-- 
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"Runner" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Howdy, all.  This is my first post to this newsgroup.  I have done a
> little searching and have not found an answer.
>
> Basically, I am interested in your opinions on the Pondmaster
> Waterfall pumps -- specifically the WFP2500.  Generally, I am
> interested in you opinions on my present system and how I might
> improve it other than using a Pondmaster Waterfall pump.
>
> My present pump/filter is a Pondmaster Magnetic pump (1200 gph).  It
> draws through a PM 1000 filter (12"x12") that contains a coarse
> polyester pad.  The outlet feeds through 3/4" tubing up and around to
> my waterfall pan.  The height is about 6' above the pump.
>
> Basically, the flow stinks and I want to improve it.  I thought of
> getting a larger pump and filter box, but my pump should be large
> enough now.  Perhaps the filter box is restricting the flow.  Another
> idea is to simply add a waterfall pump (like the WFP2500 I asked
> about, above) and redirect the outlet of my filter pump to something
> at a lower level.
>
> Any comments or suggestions would be appreciated.  I know a lot about
> saltwater and freshwater aquaria, but I am pretty much a pond newbie.
> I acquired a small pond with my house and I would like to keep it
> going.
>
> Thanks,
> Scott