A quick list of the problems that could arise in your water reservoir and what can be done to fix them.
Tools I Talk About:
Water Thermometer: https://amzn.to/2LkJFXZ
TDS Meter: https://amzn.to/347MqlZ
pH Meter: https://amzn.to/37c2Iw2
pH Up / pH Down: https://amzn.to/3acO3CG