The video is great to watch just so you have an idea of the actual concept on what needs to be done, but it is not the answer. The TFP instructions are excellent in how you should close your pool, although you will need to understand your plumbing. The video shows only that pool.
A couple of questions:
Q: What type of blower air compressor are you using?
Q: Where exactly are you hooking it up to?
Q: How many main drains, return jets and skimmers to you have?
Q: Are you using black rubber plugs or duck plugs?
Q: What valves do you have that operate the MD, returns, and skimmers?
You can push air through the system, either at the equipment pad or through the skimmer. The filter should be on recirculate. Maybe sending over some pictures of the plumbing from front and side views would be helpful. We can then move forward.