For now, pour the CYA (stabilizer) into and old sock, knot it, and hang it in front of a return.

Regarding the Kreepy Krawley, take pictures of the skimmer, hose, your pool, and your pump and filter. Mail them to poolforum AT gmail DOT com. I don't understand what your dealer told you, but with pics I, or someone else, can probably figure it out.