Karen,
Until that pathology report comes back, that comment from the doctor about it probably being low grade means nothing. One cannot tell the grade from looking at a tumor. A pathologist analyzes the cells under a microscope to work that one out.
Frankly, it makes me wonder about his urologist. If your husband has not gone to a top bladder cancer doc after two recurrences, it is time. Even if his urologist is the nicest, friendliest, best looking urologist in the whole wide world, your husband should go to a top bladder cancer specialist now.
Two recurrences with the grade he has means that BCG is the MINIMUM treatment to consider. Depending on how he reacted during BCG though, it could be that it was not triggering the immune response that it is intended. Maybe it did work though but it is just coming back again and again. The time between recurrences is also cause for concern.
If this recurrence is high grade, he really needs to discuss removing the bladder. There are options about a "replacement" bladder to be considered. I had mine out almost four years ago now and I've been cancer free ever since.
High grade recurrences require careful consideration in treatment and he really NEEDS to get to a top bladder cancer doctor now.
Mike