Well glad to see our products are generating discussion! :-D
Hello all, my name's Scott Hamilton and I'm from United Chemical. I saw your discussion on the No Mor Problems so I thought who better to get the info from than the man himself. My father created the entire product line (Jock Hamilton) and bestowed to me all the secrets of the products before he passed away. So here's the dirt on No Mor Problems.
No Mor Problems is a sodium bromide based preventative algaecide. It contains approx. 41% sodium bromide, the rest being as you said "inert". However, the inert is what makes the difference (and this is true for ALL chemicals).
As you know, sodium bromide is a salt that has the same chemical properties as sodium chloride salt- or pool salt- and behaves similiar (both chlorine and bromine are halogens on the periodic table of elements, bromine being more "reactive"). What we have done with our sodium bromide based algaecides is added a "catalyst" (the inert ingredients) to our patented formulas. This facilitates reactions between the chemicals in the water. Otherwise, the sodium bromide would do very little, just as generic salt does little without a chlorine generator. This catalyst insures that an optimum amount of hypobromic acid is produced to kill algae (and has a similiar effect on chlorine).
Because bromine is so similiar to chlorine in chemical properties- and is a more reactive element, bromine can interfere with chlorine tests. OTO tests seem to be more resistant to this, however it can still cause a change in reading. It will not "convert" the pool to bromine (this myth was started by one of our competitors who we won't name here

). You cannot "convert" a pool to bromine if you are adding more chlorine than bromine to a pool. The majority wins, and a sodium bromide algaecide doesn't contain enough sodium bromide to convert the pool (unless you add ALOT - way more than the directions say).
We are on the west coast, however, it works just fine on the "east coast algae"

. While there may be some differences in algae by region, all algae is a single celled organism with similiar cellular structure. What's good for the west is good for the east, and vice versa.
As far as wether No Mor Problems is better than Poly60, I'm biased so of course I'll say NMP for the win. However, I'd simply suggest trying it out versus other things on the market to find out what works best for you, and what meets your needs. The proof is in the pudding. Hope this helped answer some of the questions you had about our products. Keep the discussion going!
- SH