"Gary V. Deutschmann, Sr." wrote in message ...
"Pszemol" verbositized:

This is kind of misleading for the custommer, who usually
expect the pump rating at 4' match the plumbing system he
has at his fish tank.

Amen! But all companies do whatever it takes to get their ratings the
highest, anyway they possibly can. It's akin to the labels on food
products! Who on this planet eats what they call a "serving"?

:-))

I have used everything from Little Giant and Hydrothruster II, to Mag
Drive and Generic. With Little Giant we have had problems with
burnout, oil leaks, housing corrosion, etc.
With many other externals (separate pump and motor combinations), we
have had problems with bearings and seals and on occasion winding
corrosion and failure.

I sent my LittleGiant pump back to the store today.
I hope I will not regret my decision to use QuietOne 3000 instead.
From what I hear from you and what I have read til now I think I won't.

And here I didn't know they made anything above the Maxi-Jet 1000!
[..]
I will agree that some other pumps move water at a lower power
consumption than the Maxi-Jet 1000 which eats more electricity than
normal, but it also has a much higher head pressure than all the rest
too, which must also be considered.

M-J gph watts
250 78 5
500 153 7.5
750 217 8.5
1000 265 20

From the list above I would guess that they change numbering and we
have model numbers 900 and 1200 consuming the same as old 750 and 1000.
So we can expect they did some improvements to the wet side of the
pump but the motor stayed the same with its max power consumption...
For what you are saying about 1000 all seems to apply to todays 1200
and whatever you say about 750 seems to apply to 900. Keep it in mind
when you be ready to order the next box of pumps for you :-))

I don't know what Maxi-Jet's cost for sure these days, I have seen
them from $29.95 all the way up to over $45.00, but we only paid like
$14.98 each for them through an aquatic retailer, by the case, in
1995/96. I think by the each, they were something like $24.95 at
retail back then.

They go "on sale" from time to time and this is te time I try to order
them, but regular price at www.petsolutions.com is $18.99 for model 900
and $20.99 for each for model 1200 - www.drsfostersmith.com is even cheaper:
$15.99 for the smaller one and $18.69 for 1200. This is pretty cheap considering
you payed price 'by the case'. Hard competition benefits the custommer :-)

For most of our purposes, the 1000's are almost too powerful, and on
some fluids, the tubing must be constricted to slow them down a bit,
but the 750's don't have the necessary ooomph to get the heavy fluids
moving, and adding more of them seems to defeat the purpose entirely.

Running in reef as a powerhead we do not need big pressure like
is needed for high head applications. So for powerhead is it better
to use 2 model 900 with little less flow but less than 1/2 the wattage
than one model 1200 with little more flow but twice the wattage.