I want to change the grids on my filter, but I cannot get the grids apart.
Basically, I cannot get #16 (brass nut) or #8 (end bell) off of the shaft, #9. How is this supposed to come apart? #16 (brass nut) will not turn on the shaft, even after using WD40. The black plastic part of #8 (end bell) can be rotated (I got the set screw out easily), but it will not slide in or out on the shaft. Is the end bell supposed to come off? Is there an owners manual for this filter anyplace (the pool/filter came with the house).