Tru-Blu is 98% technical grade Sodium Bromide (NaBr). This is the product that is added to your hot tub or spa water. When Sodium Bromide comes in contact with the Genesis Electrode it’s electronically converted from Sodium Bromide (salt) into Bromine.
Sodium Bromide comes under different brand names and is sold for many different uses. When referring to your 98% pure Sodium Bromide bottle of Tru-Blu, please follow the instructions carefully.
*Be certain to carefully review the label directions.
When starting your Genesis Device, it is important to add the correct amount of Tru-Blu to your spa water. Add 2 lbs. for every 100 gallons of spa water.
*It is recommended to add less rather than more Sodium Bromide to your water to ensure that you do not overdose and exceed the correct dosage.
If you have a 550 gallon spa, treat it like a 500 gallon and use 5 bottles of Tru-Blu.
The Sodium Bromide level in your spa should be between 1500 – 1900 ppm. Consult the chart on your bottle of Tru-Blu Test Strips - the reading should fall between 7.6 and 8.0.
You will find that over time the water level in your spa will decrease. This is caused by evaporation and water removal (splashing, exiting bathers, etc). Evaporation will not reduce the amount of Sodium Bromide in your spa, because salt does not evaporate. Water removal will result in loss of some Sodium Bromide.
Tru-Blu Test Strips are available through all authorized Genesis Device dealers. The use of these strips will help you determine how much, if any, additional Tru-Blu to add to your water due to evaporation and/or removal.
To increase the amount of Sodium Bromide in the water, use the two ounce bottle cap. One cap full will increase the Sodium Bromide level by 70 ppm per 100 gallons.