u/Full_Caregiver_985

Purchased a new Sundance 680 Edison. When the air control valve is on low setting, it makes a rattling sound on one corner only. When air control valve is turned to mix more air, the sound goes away. We have had the technician out a few times who says that sound is "normal". It just seems odd that it is so localized in the tub. Additionally, why even have the low setting on the air control valve?

Thanks!