Is sequestrant harmful if added but not needed?

[bkkari]

We have iron in our pool water ( from filling with well water). We’re in the process of filtering this out using the polyfil filter method, which seems to be working well so far. Some one suggested I may want to add sequestrant as added insurance when this filtering process is complete. I’m all for being cautious, but just wondering if there is any harm in adding a sequestrant to pool if it wasn’t really necessary? And would the sequestrant that affect other chemicals in the pool?

Thx for your help.

 

[zea3]

There is no harmful effect for adding sequestrant. You may end up using a little more chlorine every day, but that's about it. If you have to use a well to top off your pool a sequestrant can help keep the new iron in suspension.