Hello fellow TFP members! The wife and I picked up a used Intex 18' Ultra XTR AGP back in July from someone in our neighborhood that was moving. I spent a fair amount of time cleaning it up. It was absolutely disgusting when we went to pick it up. There were literally tiny fish / tadpoles living in it. It looked like an old pond. They had even thrown in chlorine tabs and let them settle to the bottom causing some rough spots in the liner. Luckily, I am handy and I was able to patch the small pinholes all around the walls (about 4 or 5) that were discovered after we filled it up at our house. Next spring, if we keep this pool and don't go ahead and upgrade to a rigid side, I'll likely be placing larger patches on the bottom where those rough spots are. Thanks to you all here at TFP, I've only had to add Liquid Chlorine this year aside from a couple doses of Muriatic Acid to get my PH to come down some. So awesome to know this place exists to help us learn! No tablets for me! Just chlorine every day. Even got the idea to use the Flex Seal paint to coat the liner where it goes over the top rails due to the fiberglass getting in our skin. Love Oklahoma UV. 
Anyway, too much info. LOL! Thank you all in advance for taking the time to read this post and help a newbie out!
We are now in the process of closing. We have the typical pump and sand filter that comes with the Intex 18' Ultra XTR AGP. We live in Northeast Oklahoma. Typically we will get a run in the winter where we will be below freezing for a week or two straight. But That's about it. We average 72 days where we drop below freezing at night. And less than 1 day a year below 0. But there are times (like last year) where we were below zero for a while. So first question: Should we close? We won't use it this winter, that's for sure. So I assume closing just makes it easier.
Then if we do close, here are my other questions:
1) Where's the best place to get a cover? Brand? Is there instructions on how to install it? I assume I need that twine or whatever to go around it to make it tight to the sides of the pool. Should I use pillows? If so, how many?
2) Do you lower the water level below the pool outlets (pump inlets), then disconnect all the hosing, pumps etc and store for winter?
3) What all do I need to add to the water to keep it good until we open in the spring with as quick of an open as possible?
4) Do I need to check levels (water level, chemistry, etc) throughout the winter?
Thank you all again and I really look forward to learning more on this site!
Anyway, too much info. LOL! Thank you all in advance for taking the time to read this post and help a newbie out!
We are now in the process of closing. We have the typical pump and sand filter that comes with the Intex 18' Ultra XTR AGP. We live in Northeast Oklahoma. Typically we will get a run in the winter where we will be below freezing for a week or two straight. But That's about it. We average 72 days where we drop below freezing at night. And less than 1 day a year below 0. But there are times (like last year) where we were below zero for a while. So first question: Should we close? We won't use it this winter, that's for sure. So I assume closing just makes it easier.
Then if we do close, here are my other questions:
1) Where's the best place to get a cover? Brand? Is there instructions on how to install it? I assume I need that twine or whatever to go around it to make it tight to the sides of the pool. Should I use pillows? If so, how many?
2) Do you lower the water level below the pool outlets (pump inlets), then disconnect all the hosing, pumps etc and store for winter?
3) What all do I need to add to the water to keep it good until we open in the spring with as quick of an open as possible?
4) Do I need to check levels (water level, chemistry, etc) throughout the winter?
Thank you all again and I really look forward to learning more on this site!