Hello first of all you have ...

Hello

first of all you have to confirmed the dosage level,how many ppm you have to dose, in lab you can analyses jar test which gives exact dosage level.
for eg:0.1ppm for 1 liter of waste water, if add more poly the sludge will get flout never settle down.

for eg: in lab analyses that 0.2 ppm for 1 hour you have set poly for your flow rate of waste water.

LPH=LITER PER HOUR FOR EX:FOR 10M3

PPM*FLOW RATE OF WASTE WATER/% OF CHEMICAL*10 = 200

% OF CHEMICAL IS 0.1

THEN

YOUR LPH IS 200  FOR 1 HOUR TO 10 M3

AND NOW CHECK THE FLOW IS CORRECT.

LPH=200, 200/3600*1000*5SEC = 2.77 ML OF POLY YOU GET.