I am refilling my spa soon and want to do it right with the 3 step bromine system and I have a few questions.
On previous refills I just added the bromine tabs and used a granular bromine product which can be used as regular sanitizer or as a shock treatment (I think it's a mixture of sodium bromide and dichlor) but found I had to keep adding this regularly at the beginning to keep the level up.
How would this process be working, would adding the granular product be giving me sanitiser and at the same time building up a reserve (once it's been used up and converted back to sodium bromide) and then the tablets Would do there job once the reserve is built up? Or am I way off with this theory?
Do the bromine tablets themselves add bromine into the water or do they just turn the sodium bromide into bromine that's why u need a bromide reserve?
If u follow the 3 step process and create a 30ppm sodium bromide reserve at the start does this mean u could have a bromine sanitizer level of anything up to 30ppm if added enough chlorine or non chlorine shock? And as time goes by does the reserve level increase from ur tablets?
Is shocking ur spa really just raising the bromine level higher than normal which can be done by turning sodium bromide into bromine either by adding chlorine or non chlorine shock?
If so and there is no bromide reserve then adding chlorine would just put chlorine sanitiser into the spa? And adding non chlorine shock would do what?
If I am correct in my thinking then what sort of level of bromine should u have to shock and how much chlorine or non chlorine shock would u need to add to raise it to this level (assuming u have a bromide reserve)?
One last thing.
Is is possible to super shock existing bromine water (I want to super shock my tub before I drain and refill). I have read u need to raise the level to 50ppm chlorine, what level would u need for bromine and how would this best be done.
Thanks in advance