well this is sad.... this week must have tossed out 7 of my sps coral. Also fragged off about 90% of dead monti. Rest of sps and coral visibly not happy. All fish are fine... swimming fine and eating like kings. I replaced my bulkheads last weekend on my overflow and in the process i dribbled some pvc glue in my sump. It floated to the surface and was able to get most of it out. Finished the project like nothing ever happened. The day after I get home from work and look into the tank and see my blue tip acro is solid white . Noticed all other sps not lookin so healthy. My lps were visibly pissed off. I freaked out..... I had no Idea wtf happened. nothing out of the oridinary has taken place except for the glue dribble in the sump and some new pvc piping. wed and thurs I did 25% water changes. added 1/2 cup of carbon thurs night. Friday night came around and no significant improvement. So I said I need HELP.... took some water to my trusted LFS... and had test for my phosphates since everything else checked fine. phospahtes were at .3 after I had performed the large water changes. I suspect it reached .5 - .6. I purchased a phosban reactor to rid my phosphates. Keep in mind all other levels were fine. Now today is sunday.... all my other injured sps are coming back to life. Lps coral starting to open up nicely again. I have overcome a huge hurdle for me and my reef.... .... I think :-/. Even though the tank looks a little less empty I still have 75% of my coral. Now my point of this thread.... could the pvc glue dribble in the sump cause such a high phosphate spike??? and if so would that be the answer to the mass homicide on my sps?