Water triggering heartburn??

Hi all! I'm 20w pregnant and I've been drinking more and more water daily but I've noticed that my heartburn has also been acting up a bit more after going through a few glasses! I know I need to continue drinking water but would it be ok to add some Gatorade or something to it? Perhaps that would help with the hb 😝 I'm a ftm so want to make sure I'm not doing more harm than good by not drinking 100% pure water. (Please no rude comments 😜)