Hose And Hydraulics

Question 1

What is DRISL and meaning?

Answer 1

It is the Friction Loss Laws

D- DIAMETER of hose
R- ROUGHNESS of hose
I- INDEPENDENT of pressure
S- SQUARE of flow rate
L- LENGTH of hose

Question 2

When using Foam?

Answer 2

Z- ZERO the compound gauge
M- METRE the concentration
I- INDUCT valve open
F- FOAM supply open