Hello, I'm in Texas and during the unprecedented cold weather I had the Jandy backflow valve coming from my hot tube/spa freeze and crack. The Jandy valve was installed when the spa heater started leaking and the heater was bypassed maybe 15 years ago. Now that I'm looking at repairing that valve I'm questioning if it was done property to begin with. My spa is elevated and flows into the pool. I believe when the Jandy valve was first installed, the level in the spa stayed constant but now it slowly drops when the pool is not on. Maybe I already needed a new valve. Does this plumbing look proper? Should I just replace the Jandy valve (and the broken PVC elbow going into the copper valve) and call it a day? I'm getting ready to have old heater hauled off to clean things up.