Well I did not drain the pool and just filled it, the pool has been sinking on the drain plug side for for the first couple of years or so during the winter. When I removed the pool cover in the spring, the drain plug had pop off during the winter and drain some water, so I started to put a cinder block in a plastic tote and placed it on the drain plug to keep it from popping open.
After I posted the question, I found out that these types of pools are ok to be drained, because they are suppose be taken down every year anyway, I have never have taken this pool down ever, just drain some and put a cover on it for the winter. Does anyone really take these type of pools down in the fall?
As for it being 10 yrs old this year, I was surprised to see you say that these types of pools don't last that long? One leg maybe two will need to be replaced because of some rust at the feet, I plan to re-level it next year, waited too long this season, I can still get quite a few more years, maybe more out of this pool still.
I also got 9 yrs out out of my intex sand filter, died last year at the end of the season, how long do they last?
I just bought the intex auto pool cleaner and used it today, very impressed with it so far, wish I had this years ago!
As for the rails, not sure why they lasted so long?