what are good external pumps?
- Thread starter rdefino
- Start date
Onion01;1615738; said:were you drunk, john?
question: what's with the Iwaki's Japaneses and American pump. what are the differences
answer: iwaki same pump american or japanese motor
onionohwon they are the same pumps but one has a american motor the other a japanese motor ( the pump is the part that bolts to the motor
)go get some rest......you life will be much clearer when you awake ...
rdefino;1615908; said:
People who have used them both often say the Japanese version is more reliable and lasts longer. I can't say for certain as I've only used the Japanese version...... Never any troubles though.
Still, I now prefer Sequence pumps (the Reeflo series).
Would anyone be able to weight in if this is the correct size pump for me?
210gal with 2 overflows
Pushing vertically about 9ft
Horizontally about 4ft
I'm looking to use mostly flexible lines to minimize the use of elbows.
As for turn over rate 5-6times. Is that sufficient for a non reef tank?
The pump I'm looking at is:
Iwaki MD70RLT Water Pump (Japanese Motor) (Saltwater Aquarium Supplies > Water Pumps > External > 1000-2000 GPH )
Iwaki MD70RLT*
Inlet(MPT)/Outlet(MPT): 1"/1"
Flow Rate @ 4 Head: 1500 GPH
Max Head ft: 31.8
Is this enough? Not enough?
210gal with 2 overflows
Pushing vertically about 9ft
Horizontally about 4ft
I'm looking to use mostly flexible lines to minimize the use of elbows.
As for turn over rate 5-6times. Is that sufficient for a non reef tank?
The pump I'm looking at is:
Iwaki MD70RLT Water Pump (Japanese Motor) (Saltwater Aquarium Supplies > Water Pumps > External > 1000-2000 GPH )
Iwaki MD70RLT*
Inlet(MPT)/Outlet(MPT): 1"/1"
Flow Rate @ 4 Head: 1500 GPH
Max Head ft: 31.8
Is this enough? Not enough?
You need to look at the head height numbers for 11'. That is the amount of flow you will actually get based on a real general calculation of fittings, height, and length of travel.
So if you see flow rate @ 4' is 1150 it will only get worse from there. So you need a pump that can push about 1175 GPH @ 11' to meet your 5-6 times turn over.
I use about 4-5 times turn over for fish only but I know others who use more and I know a few who use less. I think the general rule is around 5.
So if you see flow rate @ 4' is 1150 it will only get worse from there. So you need a pump that can push about 1175 GPH @ 11' to meet your 5-6 times turn over.
I use about 4-5 times turn over for fish only but I know others who use more and I know a few who use less. I think the general rule is around 5.
Then why would the Pump Head Loss Calculator say I would get Total losses are 14.68 feet of head pressure, or 6.34 PSI. with a flow rate of 1149 GPH.
It said I have a 1149 GPH with the 9" vertical, 4" horizontal, elbows, unions, gates.
Am I reading it wrong?
Thanks
It said I have a 1149 GPH with the 9" vertical, 4" horizontal, elbows, unions, gates.
Am I reading it wrong?
Thanks
Well obviously you have more info than what you are telling us about your total head height.
As far as the calculator is concerned. Again, you're not telling the entire story. Without a pump and it's specs, no claculator can tell you what the GPH will be based off your 14.68 feet of head pressure.
So what pump are you basing this info off of?
My reply to you was based off your message that stated this:
"Iwaki MD70RLT*
Inlet(MPT)/Outlet(MPT): 1"/1"
Flow Rate @ 4 Head: 1500 GPH
Max Head ft: 31.8"
Again if the flow rate on the MD70RLT @ 4' of head pressure is 1500 GPH then there is no way it's going to be anywhere near what you need it to be at 14.68 feet.
You keep leaving half of the info out of every question you ask.
Bottom line is look up any pump, look at it's flow chart. Find your 14.68' and see what it's GPH is at that height. If it's not 5-6x your tank then it won't work.
As far as the calculator is concerned. Again, you're not telling the entire story. Without a pump and it's specs, no claculator can tell you what the GPH will be based off your 14.68 feet of head pressure.
So what pump are you basing this info off of?
My reply to you was based off your message that stated this:
"Iwaki MD70RLT*
Inlet(MPT)/Outlet(MPT): 1"/1"
Flow Rate @ 4 Head: 1500 GPH
Max Head ft: 31.8"
Again if the flow rate on the MD70RLT @ 4' of head pressure is 1500 GPH then there is no way it's going to be anywhere near what you need it to be at 14.68 feet.
You keep leaving half of the info out of every question you ask.
Bottom line is look up any pump, look at it's flow chart. Find your 14.68' and see what it's GPH is at that height. If it's not 5-6x your tank then it won't work.
