Bottom posted.
Roy wrote:
Its highly unlikely your oil came through the cord....Little Gian t
pumps are well known to just up and start leaking......I personally
would go with a Danner POnd MAster pump. They are submersible and
depending on the model (IIRC MAG 5 and above) thewy can also be used
outside thw water and no need to submerge so it may double for a pump
for something sometime..The MAG drive series of pumps are oil free and
no possibity of leaking. They are virtually bullet proof. Just match
your gph on the LG pump and mayabe even bump it up one size.......but
pump for pump the mag drives are a better pump all the way
around.....If yur pump is relatively new you may inquire with LG as to
having it returned and have them replace it. I do not think cutting
the cord should have any problems with warranty sa you never really
took the pump itself apart.......If they did exchange it for you
always ebay iot or keep for a spare for something or other.....I have
to back track on something I stated previously.yes oil can be pushed
though the cord, if the pump is sucking in water it can pressurize and
push water or actually weep / seep water through the cords conductors
and insulating material, and with a molded on plug it could keep it
from say filling your junction box, it would still displace the oil in
the pump with water and die just the same........poor design IMNSHO.



On 5 Feb 2006 13:16:01 -0800, "Jackson" wrote:
I installed a Little Giant NK-2 submersible pump into my pond to
supply the water fall.

The way the pond is constructed, I had to cut the power cord to
run it through a hole in the bottom, and then splice it to power
in a junction box. I was careful to seal the junction box.

The pump operated fine for many months, but then died. The
junction box was filled with water (and possibly oil), and
shaking the pump, it was clear that oil had leaked out.

Is it likely that the oil leaked out the power cord? Does the
plug on the cord provide for part of the seal, and should
therefore not be spliced?

What sort of pump should I replace it with, given that I will
need to cut/splice the power?

Danner mag drives are the absolute best value in water pumps. You only ever
need another brand of water pump if you are doing something usually insane
like making a 40 foot waterfall for example (other brand pumps sometimes are
capable of doing that but they cost a ton more money and use a lot more
electricity which causes more money to be spent for the energy consumption),
I got myself a mag-7 and I LOVE IT! I am going to buy some more so I can
automate my tanks' topping off like roy also suggested I do, a while ago on
another newsgroup. Danner still makes a mean air pump as well (older
technology but possibly has more air pressure capability than any other air
pump I know of I think, and it's belt driven for easy repairs and the plain
fact is that air pump just plain works for even the most demanding
applications despite possibly being a little more noisy than a comparable
non-belt driven air pump) but it's still a little expensive considering
(danner's air pump). Good luck and later!