Ilford HP5+

All

400

D-76

1+1

20

Every 60 sec.

Start with a water pre-soak for at least 30 seconds.

Once the developer is poured into the tank, give it a few good wraps on the counter to dislodge any air bubbles. Immediately start your tank inversions. The agitation is fairly vigorous. Initial agitation is for 30 seconds. The inversion rate is about one complete inversion (over and back) per second.

Subsequent agitation is 5 - 7 seconds every 60 seconds. Four inversions during the 5 - 7 second agitation period, with a bit of a drop at the end of the inversion. I also gave the tank a half twist during each inversion. Alternate the twist clockwise, then counterclockwise, on each inversion. Wrap the tank a couple of times on the counter after each cycle to dislodge any air bubbles.

Twenty seconds before the development time was up I would start draining the developer out of the tank.
(SPS731)
www.apug.org/forums/forum37/40646-d76-agitation-preference.html