LG makes many different pumps and I haven't had one in about 8 years. The
old LG that I had was a 1200 gph pump, and at that time they were made of
some kind of pot metal that was subject to corrosion and were oil filled, so
they would put an oil slick on the water that would cut out oxygen transfer.
The LG that I had, I think, put out more water pressure, so would easily run
higher falls or smaller diameter pipe than the mag drive pumps that I have.
LG now has some energy efficient mag drive pumps, but I don't know if the
housing is still metal or plastic, or whether they are still oil filled.
--
RichToyBox
http://www.geocities.com/richtoybox/index.html

"W Dale" wrote in message
...
Hum... so, as I approach my 3rd season (second year) with my 1st LG 4300, I
can expect it to go "belly up" soon and when it does, I should consider
replacing it with an external pump? What makes the externals more efficient
than the submersibles? So far, I have had IMO, wonderful success with my
two Little Giant 4300's. They are feeding 2 70 gal and 1 100 gal rubbermaid
stock tank filters and 1 24'X2'X18" veggie filter for an approx. 4000 gal
pond (irregular shaped - heart or kidney bean - 19' X 21'X 4.5'). What I
keep seeing in some of the post is that the LG's will definitely die and
that external pumping is better.
Thanks for you input.
W. Dale

Grubber wrote:

"DennisD" wrote in message
...

I am in the process of setting up a water garden. Since I'm in the

plumbing

business I have access to Little Giant pumps at great pricing. But the
question is: are they any good (longevity, energy consumption, etc.).
Thanks




I haven't used Little Giant so I won't comment on that, but realize that you
will probably spend more money on electricity over time than you will on
your pump. Your great pricing may not be the best in the long run. Danner
and Laguna are efficient pumps for submersibles and external pumps are more
efficient than the best submersibles.