I have a wc coming up this weekend. Along with the wc I plan on scraping some xenia off the back glass, about the size of a dinner plate. My plan is while all the pumps are off to scrape the glass and catch the Xenia in a net to discard. What I'm asking is this straight forward scraping and removing or should I be concerned for toxins being released if any, should I scrape all at once or a little at a time, any pointers from anybody that's done it.



