How to get a flow rate for a soccer field?

Answer 1

It depends on a few things - what soil type you have, how much rain occurs where you are, how much access to water etc and how much maintenance you will be able to do.

There is a new system available called KISSS subsurface Textile Irrigation which uses a lot less water than sprinklers (up to 60%) and can be easily automated which significantly reduces maintenance (no need to move sprinklers or replace damaged automatic sprinklers). If you don't have much rain water you can also safely use recycled water as it's disperesed underground.

It's installed below the surface and is probably the best irrigation system available and is used for lots of soccer and other sports fields around the world. It's way more water efficient than any surface sprinklers - and even subsurface drip.

An irrigation store will be able to assist with designing the system - but at a minimum you will need to look at your soil type to plan the spacing of the irrigation lines, think about filters, connectors, soil moisture probes etc.

Answer 2

You actually use different types of field marking kits for this. If for training only, you can use a mini soccer training grid to make a smaller temporary line for group of players that you want to train.