Want my best advice? And this is coming from someone who still uses baquacil after close to 25 years....don't do it. Stick with chlorine. OR if you do want to use biguanide-based systems, DON'T also have a DE filter. Use sand. A friend of mine uses sand with baquacil and reports to never have any problems. MUST BE NICE![]()
Well, this kind of puts a nail in the thread I think

Lee, the forum Admin also was a long time Baq user ... I don't think you could pay him to go back