so i tried this last year and it worked really well.
i started the BBB method this year and got my pool sparkling clear but noticed alot of dirt on the pool floor. i would sweep and came back the next day and it seemed like my filter didn't catch anything and psi didn't raise a bit. i just added DE again and i am about 6 psi above normal. i am about to back wash and was wondering if i can add more DE or is there a limit to the amount added to the sand filter?