Looking for opinions on pumps
- Thread starter caz2022
- Start date
veni vidi vici
Active Member
Originally Posted by caz2022
http:///forum/post/2866610
Hey all. Starting a new project. Using a 55 gal as a sump for two 75 gal tanks. My sump is going to be in my basement so what I'm looking for is a pump that can handle a head of about 13 feet and roll over two tanks.
Ive only used Reeflo pumps so i have nothing to compare to ,however i have absolutely no complaints about these pumps .Compared to other pumps they are also relatively cheap price wise
http:///forum/post/2866610
Hey all. Starting a new project. Using a 55 gal as a sump for two 75 gal tanks. My sump is going to be in my basement so what I'm looking for is a pump that can handle a head of about 13 feet and roll over two tanks.
Ive only used Reeflo pumps so i have nothing to compare to ,however i have absolutely no complaints about these pumps .Compared to other pumps they are also relatively cheap price wise
big
Active Member
For this kind of application the "Sequence" pumps would be the best at that pushing water to that level. That is who makes the Reeflo ones referred to.....They are without question that best at this type of thing.
You should use a Pressure Biased Pump not a Flow Biased one. The head rise can be an issue. Piping diameter, elbows unions and other things needed to be accounted for in figuring what is called "Friction Flow" . Things like Elbows and small tubing will increase the friction drastically. Go with a pump larger than what you think you may need. Then add a gate valve to control the flow speed. A pump under back pressure created by a control valve also reduces electrical usage. It seems strange that working a bit harder uses less electricity but that is just how motors work .. Spinning slower. reduces usage even with more on a load on the pump.....
I have a basement fuge-sump with one and a half inch PVC running up to my diverters feeding my tank. I had started with the "Tarpon" and had to upgrade to the Marlin impeller...... I am actually running a prototype "Super Marlin" that Reeflo provided for me to try with a higher head flow yet.. Any in any one class all use the same motor, but different impeller heads make the difference in their performance characteristics.Around 30 bucks to change impellers plus any shipping charge.........
Run the largest diameter and least amount of Elbows possible. And be SURE you use "Unions" in the construction.. Sorry if a Mod yell's at me for the .COM but here is a link to the Friction Flow charts.. It is just too much typing for my febble old head........... Good Luck.... Warren
http://www.reeflopumps.com/images/flow_charts.xls
You should use a Pressure Biased Pump not a Flow Biased one. The head rise can be an issue. Piping diameter, elbows unions and other things needed to be accounted for in figuring what is called "Friction Flow" . Things like Elbows and small tubing will increase the friction drastically. Go with a pump larger than what you think you may need. Then add a gate valve to control the flow speed. A pump under back pressure created by a control valve also reduces electrical usage. It seems strange that working a bit harder uses less electricity but that is just how motors work .. Spinning slower. reduces usage even with more on a load on the pump.....
I have a basement fuge-sump with one and a half inch PVC running up to my diverters feeding my tank. I had started with the "Tarpon" and had to upgrade to the Marlin impeller...... I am actually running a prototype "Super Marlin" that Reeflo provided for me to try with a higher head flow yet.. Any in any one class all use the same motor, but different impeller heads make the difference in their performance characteristics.Around 30 bucks to change impellers plus any shipping charge.........
Run the largest diameter and least amount of Elbows possible. And be SURE you use "Unions" in the construction.. Sorry if a Mod yell's at me for the .COM but here is a link to the Friction Flow charts.. It is just too much typing for my febble old head........... Good Luck.... Warren
http://www.reeflopumps.com/images/flow_charts.xls
big
Active Member
Originally Posted by caz2022
http:///forum/post/2880790
thanks for all the info. im wondering-would would 2 45s be better than a 90 degree?
Works out close to the same, but friction flow is the key. Google the term Friction Flow Chart" there are many examples.............The math becomes lots of addition of individual pieces of you finished piping. Valves, Tees, Elbows, Head rise, etc.
One thing when using this type of pump is to allow at least a foot on the intake side of the pump as a straight in tube. These types of pumps can pull so hard to cause cavitation without this allowance in system design.
Do a lot of Googling and reading before you start doing the glueing........
http:///forum/post/2880790
thanks for all the info. im wondering-would would 2 45s be better than a 90 degree?
Works out close to the same, but friction flow is the key. Google the term Friction Flow Chart" there are many examples.............The math becomes lots of addition of individual pieces of you finished piping. Valves, Tees, Elbows, Head rise, etc.
One thing when using this type of pump is to allow at least a foot on the intake side of the pump as a straight in tube. These types of pumps can pull so hard to cause cavitation without this allowance in system design.
Do a lot of Googling and reading before you start doing the glueing........