Hello all, (First Post WOOT! WOOT!)
I am in Canada and i just had a new Riviera 34 by Leisure Pools (fiberglass) with a salt water system installed this summer.

It is now time to close the pool and the local company wanted $275 to do this which I thought was crazy so I have a few questions, ok alot of questions after browsing this site and tackling this task myself.
1. I understand that I need to bring the pool up to shock level but I don't have a proper testing kit yet to test this, but there is a super chlorination setting on my Pentair Intellichlor. Do I run this? or is that something totally different?
Here is my pump setup:

2. Do I disconnect all my the connections I have marked above?
3. Should I buy Duck Plugs or just regular rubber plugs?
4. I understand I pull the plugs (have to find them first) out of the Filter and Heater but after it is done draining do I need to do anything else to make sure all the water is completely out?
This is my pool:

5. Living in Canada I think it is best that I drain the water below the returns, to do this I need to drain the water 2ft. below the top of the deck. Should I be carefull not to drain to far with a fiberglass pool?
6. Do I blow the water out of the lines back to the pump? or should I blow both ways?
7. For the returns (they are spa jets) do I need any special tool to take them apart so I can blow them out and insert the plugs?
8. At my waterfall my line splits into 3 underneath the top rock (see image below of waterfall) do I plug these holes as well?
9. The distance from my pool to the pad is about 80ft to 100ft. I have a large shop vac, do you think this will be strong enough to blow the lines out?
10. From my understanding I need 1 gallon of Anti-freeze for every ten feet. I have a skimmer (it has two holes which I assume branches into 1 line), returns, and waterfall - so I need 30 gal. of anti-freeze. Does that sound correct?
11. After I add the anti-freeze should I blow the lines till I see some anti-freeze come out the other end to make sure it is all the way through the lines?
12. I have two lights in my pool and the installer didn't leave me with enough line to let them sit at the bottom of the pool (gave him **** for that) is it ok to have the lights sit on top of the deck?
Now the tricky part, here is a look at my waterfall:

When I had my landscaper design the waterfall I never took into consideration how I would put the winter cover on. My pool guy gave me a winter cover but I don't think it is large enough to go right over the waterfall.
13. Any ideas on how I install my winter cover with the waterfall right on the edge? or should I go and get another cover that is large enough to go right over the top of the waterfall so I can put the bags on the back side to hold it down?
14. Should I use an air pillow under my cover? what are the cons if I don't?
15. Until it gets cold enough should I be pumping off the rain water that collects on the winter cover?
Thanks to any of you who can clear these questions up for me!