Sequester brand recommandation

[nieuport17]

I have well water, so if pool water is low, I will be adding my soften water into the pool which will contain small amount of metals.
Is there a brand of metal sequester that you guys use and trust? My local Walmart has Clorox brand not sure if that is good enough.

Thank you.

 

[AQUA~HOLICS]

Jacks Magic products are what I use on all my finished pools.