And now my pool is closed for the winter. It wasn't as tough this year.

For 2 weeks I've been letting the pool cool, solar panels off. Last week I actually disconnected them to let them drain a little and plugged their returns.

Monday I added 1 quart of polyquat.

Wednesday (48 hours later) I started increasing the chlorine level. P-quat lowers FC levels and after adding a quart, it takes about 2 days before the chlorine levels will come up.

Saturday:
I tested the water and found it had a pH of 7.3. Since I KNOW it gets more acid over the winter, I added Borax. I also added two gallons of 12% LC.
Pulled off the solar cover and laid it on the lawn for rinsing, drying and folding.
Threw in the Blue Diamond robot to clean it, and got the leaf rake and pulled out a ton of leaves.
Started the shop vac in reverse blowing out the solar panels. This takes all day and I have to undo a few hoses to allow enough blow-out pressure.
Meanwhile I washed the solar cover of leaves and pollen.
Out came the ladder and drop-in steps, to be stored in the shed.
We then put on the winter mesh safety cover 90%, just leaving the end where the return, drain and skimmer is open.
Some of the deck furniture (umbrellas) went to the basement.
We folded the now-dry solar cover and put it in the basement.
At this time, I was beat.

Sunday:
Tested the water and added one more gallon of 12% LC.
Several hours later I started backwashing to waste to drain the pool below the returns.
As the skimmer went dry I turned its ball-valve off. When the water was low enough, I plugged the return, my overflow drain, the low drain and the skimmer.
The skimmer gets an Aquador cover and a Gizmo, and the bottom of the skimmer is left open.
The rest of the winter cover was then closed.
Quick-connects released the Solar panel manifold, the return, drain and skimmer plumbing, as well as the pump-to-filter pipe.
The Multivalve was removed from the filter.
Each O-ring was dried, lubed with silicone grease and placed in its own, marked zip-lock bag with the air forced out. All the zip-locks go in one larger one so they stay together. The O-Ring from the Multi-valve on top of the filter gets treated the same way.
The pump was unplugged, the pump's banding ground removed, the strainer removed and cleaned and the entire pump allowed to drain--I turn it upside down!
The filter drain plug is removed and goes in a zip-lock with all the O-rings. These are then stored indoors.
The flexible plumbing was drained and went into the shed as did the pump.
Meanwhile the rest of the deck umbrellas and their stands went to the basement.
Finally, when the filter was drained (I stick a flat rock under one side to tip it toward the drain, I cover it with heavy contractor trash bag and duct tape it tight. I wrap duct tape around the rim where the multivalve mounts, and at the bottom below the curve. This way the bag is tight, but no duct tape gets on the filter itself, only on the bag. I make sure it can't flap in the wind, then I put a cinderblock or patio block on the top to protect the covered opening.

And I'm done!