Question.. Is that a bag of limestone or Hydrated lime? I'm asking bcause if it is limestone (ag lime), it will be very, very slow to offset the ph.
If you decide you need to add more alum, put the discharge near the prop wash or use a nozzle to "fan" the spray. The alum tends to drop quickly with the flock and the wider the spray, the better the floc.
Looks good, and I hope it does great for you!
From the experiances I have had with applying the alum, you may need to use another thousand pounds to get ALL the clay out of suspension for the best, longest lasting results.
