Excellent and informative video Grant and so good to have a better understanding of how much work goes into maintaining and improving our course. Well done everyone especially the new labourer or should that be labrador!!
At a previous place of employment, we had well aged push up greens. They would notoriously hold excess water. With limited budget, we ran a shattermaster through every six months. Problem solved.
I have been in the golf business for 40 years, I am very skeptical of the process, it is very hard to take a push up green and make it drain. Fines may block the capillary tubes, or you may get dry streaks where they are and wet areas between them, inconsistent moisture in the green. The only way to do it in my experience is to dig the whole green up and rebuild it from scratch.