Need help identifying plumbing components

joboo7777

Bronze Supporter
Aug 8, 2020
49
McKinney, TX
Pool Size
15568
Surface
Plaster
Chlorine
Liquid Chlorine
Hello all!
Below is a pic of some pieces of my plumbing setup that I’m not familiar with. Any help identifying these components would be greatly appreciated

1) yellow circle to the left exiting heater heading to chlorinator back to pool. There is a fitting that looks different.Is this a backflow preventer?

2) red circle to right. Some sort of wire connected to pipe prior to entering heater. The other end of wire goes to my OmniLogic panel.

Thanks!
John
 

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Jimrahbe

Mod Squad
TFP Expert
LifeTime Supporter
Jul 7, 2014
20,261
Bedford, TX
John,

The yellow is a check valve to prevent acid from your tab feeder from draining back into the heater and destroying it..

The red is a temp sensor (thermistor) that tells your automation what the water temperature is..

Thanks,

Jim R.