Hello, I am new here, my name is Greg. I recently bought my first house which came with a pool(or as I like to call it, my own personal money pit). It's old and I have had to fix many things on it. More recently I discovered the backwash push pull valve was pretty much frozen. After doing some research it appeared that the o-rings on the stem were probably pinched and preventing it from sliding up and down. After trying for hours I could not get it to budge more that a couple of inches. So I decided I would just cut it off and buy a new one since I couldn't get just the stem out. I went down to leslies to buy a whole new valve. My valve is an American Products. The guy there said they were bought out by Pentair and Pentair only makes one valve which he matched up to mine and they were not the same. I don't have any info from the previous owners about the pool. I know the filter is an American Products Titam CM though. The guy said I would probably have to buy a new filter and valve which would set me back over $700. According to the guy, they haven't made my filter in 15 plus years. I am basically wondering what are my options? Thank you