Need help Identifying a Pool Part

shananigans

New member
Apr 23, 2020
2
Massachusetts
Hi All - Preparing to open our new saltwater pool for the first time this spring....thought we had all the steps down and all the parts labeled and identified, but am stumped by one part. I've attached a photo - can anyone tell me what this part is (red arrow pointing to it) - it honestly looks like a clear tube filled with birdseed lol? Also, does this play any role in either winterization or opening? Thanks so much for helping out this newbie!

ETA:
In ground, 28,000 gallon
  • (1) Hayward Tri Star 1.5hp Filtration Pump.
  •  (1) Hayward Cartridge Filter C-4030
  •  (1) Aquarite® Salt Chlorination system w/T15
  •  (1) 140,000 BTU Hayward Low Ambient heat pump.
 

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ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
17,969
Northern NJ
The wire connected to the top of your birdseed container looks like it is connected to your bonding grid.

It is a sacrificial anode.

 
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