# Calculating the flow of water

1. Dec 10, 2008

### herbicide

Before I start off I wish to make it clear that I am by no means a rocket scientist. This is to say that I don’t have a clue in regards to how to go about this.

Issue at hand: My employer asked me to design 2 bars (info desks) that have a water channel running through the middle of them.

One of the desks take on the form of a “L” the other takes on the from of a “U”. The channel where the water is to flow through is 250 mm wide and 50 mm deep.

The length of the “L” form bar is 1800 mm x 1800 mm.
The length of the “U” form bar is 3800 mm x 3800 mm x 2800 mm.

I pump I plan on using has a delivery rate of 440 lph (liters per hour) with a delivery height of 1500 mm.

My questions:

a) What is the need a percentage of slope that is required to have the water move at moderate flow rate?
b) How much water is required?
c) Am I planning on using the right pump?

I am in dire need of assistance on this; my performance on this particular task will be evaluated and it could end up costing my job.

Greetings from Germany,

-h