I've read the article in the Pool School on closing for the winter a couple of times and did some searching but I'm uneasy about what I'm supposed to be doing for the incoming winter here in Houston.
I don't have a cover for the pool and this will be the first winter I've had for my first pool, so I'm trying to understand the basics of what I'm trying to prevent. As best I can tell, I'm trying to prevent water freezing and cracking some PVC or plastic somewhere, and I suppose I'm also trying to prevent algae growing in the water as the temperatures spikes hot in the south? I'm not really sure.
Even though it doesn't get very cold in south Texas, we do have occasional freezes (including the famous really bad one last year), so I have to assume there could be freezing weather occasionally. And similarly, even though it is winter time, it is very common in the winter to have spikes of warmer weather from time to time.
So, what do I do? If I didn't get any other guidance, I'm thinking I would:
Here is a picture of my pool and my pool equipment:


I don't have a cover for the pool and this will be the first winter I've had for my first pool, so I'm trying to understand the basics of what I'm trying to prevent. As best I can tell, I'm trying to prevent water freezing and cracking some PVC or plastic somewhere, and I suppose I'm also trying to prevent algae growing in the water as the temperatures spikes hot in the south? I'm not really sure.
Even though it doesn't get very cold in south Texas, we do have occasional freezes (including the famous really bad one last year), so I have to assume there could be freezing weather occasionally. And similarly, even though it is winter time, it is very common in the winter to have spikes of warmer weather from time to time.
So, what do I do? If I didn't get any other guidance, I'm thinking I would:
- raise the chlorine level quite high
- add polyquat? Not sure... i've never done that and I'm not sure if it is needed or if there are ramifications of getting rid of it when I open back up
- drain the pool below the skimmers and returns, then use the shop vac in the bottom of each skimmer to try and blow any water through the lines and out of the returns
- i don't have any plugs... i'm not sure if that is something i need to buy or where I would use them
- open the drain plugs on my pumps (i have 3 of them - pool, waterfall, and polaris robot)
- Put the control panel into service mode so that none of the scheduled running of the pump or the cleaning robot happens anymore (or maybe just figure out how to remove power altogether)
Here is a picture of my pool and my pool equipment:

