Hi there, and welcome to Trouble Free Pool!
I understand that the 'Ideal' and 'Recommended' values suggested in the PoolMath app may differ from Hayward's recommendations. Currently, changing these target levels isn't an option within the app.
Is there a particular parameter that's causing concern? We'd be more than happy to explain why we set our recommendations the way we do. The guidelines provided by TFP are based on extensive real-world experience and scientific research in pool care, and we find that they often result in better water quality and easier pool management.
If you feel that these alerts aren't useful for you, there is an option to hide them. You can do this by going into the app's menu, scrolling down to 'Advanced Settings,' and then selecting both 'Hide Ideal Range Alerts' and 'Hide Recommended Range Alerts.' After you've done this, make sure to save your settings.
However, I strongly advise against this. We'd really love the chance to assist you with your pool care and to explain why our approach is different - and we believe better - than others. So please, give us a chance. We're here to help!