I think I may have messed up by adding CYA to the skimmer. This skimmer has a suction line from the pump as well as another line that goes down to the main drain. Well after I dumped CYA into the skimmer and walked away, a bunch of the CYA fell down into the main drain line and proceeded to sit there. I *think* it formed a clump and clogged my main drain line. Now, this isn't really a big deal as I don't ever use my main drain but I'm worried that the CYA may be lurking down there eating away at the pipe.
I've tried very vigorously using a plumbing snake to try to clear the line but I'm not exactly certain if I'm bumping up against a hard clump of CYA that's blocking the line or if the main drain plumbing is just sort of twisty (it's all underground) I just can't get the plumbing snake to go down more than a couple of feet because of the twists and turns.
Has anyone else heard of CYA forming a clump after being added to a plumbing line like this?