Vinny and Tony or anyone who cares,
Do you have a Taylor Pool & Spa Water Chemistry book? If so, turn to page 31. Under the section "Disadvantages to MPS" it says "Unlike breakpoint chlorination, will not remove combined chloramines".
This seems strange to me. Is this correct?
NO! This is not correct! Any MPS that is added will eliminate as many chloramines as it can. Though breakpoint is occuring, it IS NOT an "all or nothing" reaction like with chlorine based shock.
MPS can give false total chlorine readings for up to [glb]72 hours[/glb]
