First of all, thank you all so much for making this site such a huge benifit for so many pool owners.
My question is why do you have to sustain the FC level at such a precise level during the SLAM?
I appreciate the fact that it does take a hyper dosage of FC to burn off the algae but if the calc. says to raise it to say FC=17 and you do this and keep it above 50% of this value until you add more bleach to regain the target FC, why wouldn't that also work? I understand that it would take longer but just trying to balance my time with results wanted.
The second thing I would like to put out there is the brushing technique I use. I have been maintaining my own pool for over 30 yrs and have had numorous green pea soup occurances out of my neglect. While back then shocking, now SLAMing, I don't brush it until I can see the bottom. This is in part do to my DE filter clogging so quickly. I get the water clear and then brush a little at a time like maybe half the walls first then let that get filtered out all the while keeping the FC at SLAM levels or close. This keeps the pool turning while I'm away from it (sleeping, work). Upon returning I backwash, adj. FC and brush another area. For the bottom if it's really bad I'll vac to waste the first time then brush. This isn't saying that brushing the whole thing at one time is bad or my way is correct but it is the only way I can have more then a few hours of circulation in the pool.