I'm going to address this last statement in two parts. Please take the advice from either part that you wish to use.
1. As I stated above, Baquacil works best by preventing algae growing. This is done by a combo of both the Baquacil Sanitizer and the use of an algicide. Make sure that you keep your sanitizer levels between 30-50ppm at all times. If EVER this falls below this amount you will get algae....and quickly too. To combat the issue of your levels dropping.....test daily, much as you would a chlorine pool. If you are expecting heavy use in the pool, heavy rains, plan on leaving town for a few days, or see any signs of algae bump up your sanitizer levels. To combat the algae that you already have use the Baquacil Oxidizer product. Using this product is just like using a "shock" product for chlorine. Make sure that you are adding oxidizer to the pool often for the next few day's until your pool clears up. Keep the pool running 24/7 or as often as you can. I know that often our DE filiter would lose it's prime OFTEN when clearing algae so if you're uneasy about running it overnight....DON'T!
2. My in-laws used Baquacil in their 25k gallon pool for over 15 years. Until the end of last season, never once did any other item besides Baquacil hit the pool. The water was always "OK" under normal use, but if you leave it for a few days.....it turned green. No matter any way you look at it, there's one promise I will make to you using Baquacil. You will spend a TON of cash keeping the pool clean. My in-laws would often spend well over $800 a year just in chemicals to clean the pool. This isn't counting items for PH or anything else. If you've just started using Baquacil and have no other reason to use the chemical besides "you're already in it for a few hundred" I myself would STRONGLY count your lose now and get out! Try and return the product that you've yet to use for store credit and switch to chlorine. Often to open the pool my in-laws would spend $200-$300 to get the water "cloudy" at best. Never once was it the sparkling clean that we have no. We made the switch to chlorine at the end of last year, and the total bill was well under $200. So far this year we opened the pool in early April. The water was dark green upon opening, but in less than a week we had it the sparkling blue that this forum is famous for. I spend maybe 10 minutes a day keeping up with the pool during the week, and on the weekends nobody does much besides turn on the pump and add 1/2 a gallon of 10% chlorine on Sunday's. To date we've spend just around $60 this year on chlorine keeping the water clean. IT'S WORTH THE SWAP IF YOU'RE LOOKING TO SAVE CASH. If you're still wishing to give your hand at Baquacil I'll be more than happy to help you out clean your pool, but be warned it's expensive.