Figuring lift?

[27goldfish]

Might seem stupid, but I'll ask. When figuring lift, do you just measure the vertical distance? I am assuming you would also have to try to figure out the angle of lift. Here's why I ask. I have a pump that is approxamitly 12 ft away from the filter I am going to build. The inlet of the filter is 2 1/2 ft haigh than the pump. I am looking for a target of 1200 gph inside the filter. This is why I am asking. Any good forula's I can use, or am I going to have to wing it?

 

[addy1]

Here is a site that has some lift information.

http://www.discount-...e-pond-pump.htm

here is a site I saved that has a lot of different calculations

http://www.garden-po...calculators.htm


To be accurate, you need to count height, angles in the piping, size of pipe etc.

 

[27goldfish]

One of the links was wanting me to install a xls file. Not sure what those are. Interesting read though. Looks like every 10 ft of plumbing restricts a foot of head. So, lets say the horizontal plumbing is about 9 ft. Vertical, all said, is about 7 ft (very rough estimate). I will need a pump that does roughly 1500 gph @ 20ft or so? Am I thinking correctly on this?

 

[Waterbug]

Google "water friction loss table" for lots of tables.

If you use 2" pipe the friction loss is almost nothing, around 1" head loss in your case.

 

[addy1]

One of the links was wanting me to install a xls file. Not sure what those are. Interesting read though. Looks like every 10 ft of plumbing restricts a foot of head. So, lets say the horizontal plumbing is about 9 ft. Vertical, all said, is about 7 ft (very rough estimate). I will need a pump that does roughly 1500 gph @ 20ft or so? Am I thinking correctly on this?

.xls is excel, just a spread sheet, built with calculation cells.

 

[27goldfish]

Don't have excel WB, thanks for the info