+1. They are going to balance it and maintain it for a period based on antiquated industry standards. Most have to prove monthly tests at a store to keep the warranty valid and then claim they have the store recommendations at home already. ‘I’ll go right home and add them’ *giggles*. *goes home but does not add them*Your PB holds the warranty and they trust their startup guys (even if they go against TFP methods). I would hate to see you add a bunch of stuff to the pool and then there be an issue and you get blamed and it not covered by warranty.