My spa is slowly leaking back into the pool, apparently through a check valve. I dug up the partly buried valve, but am unable to locate any info on the company. I'm new at this, so I don't know if check valve unions have a standard thread and length and any same size check valve will work, or if they were unique by company. I'm guessing it was part of the original pool which was built with the house in 1994 and several owners back. Of course there's not a lot of room or enough pipe to cut out the existing valve and unions to replace it. Here's some pics of the installed valve, which is labeled "Flo" with a stylized F, Troup TX and D 2466
Thanks for any help.
