Maintaining your body’s electrolyte balance is critical for a safe race. It is strongly recommended to bring a mixture of electrolyte tablets AND electrolyte drink powders.
You must bring a minimum of:
Enough powder to make a minimum of 30 liters of drink OR
Enough salt tablets / Endurolytes for 30 hours on the course (usually minimum is 1.5 tablets per hour=45 tablets) OR
A combination of both, e.g. powder for 15 liters of water and tablets for 15 hours on the course.
If you expect to spend more than 30 hours on the course then you should increase this accordingly. It is vital that you test your electrolyte plan during your training and follow the amounts recommended on the packets.