Smooth agitation: 5sec every 30 sec.
Recipes & dev times using Film Ilford HP5+ 400
Ilford HP5+ 400 at 800 in Kodak HC-110 1+19
7 minutes, 30 seconds at 20°C/68.0°F
Ilford HP5+ 400 at 1600 in Kodak HC-110 1+19
11 minutes, 15 seconds at 20°C/68.0°F