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Clogged pre-filter on a 9" CDL vacuum filter
I am learning how to use the 9" CDL vacuum filter but I imagine there are people here who have faced the same predicament with the larger versions. I put the orlon filter + 3 prefilters under the ring and clamped it down. Then I started adding 1 gallon of syrup. The first 2/3 flowed through, but the last 1/3 got stuck because the prefilter had a good 1/16"-1/8" thick layer of niter. The vacuum didn't suck it through either. How am I supposed to remove the prefilter when it is clamped down? I ended up pouring the stuck syrup back out so I could unclamp and remove a prefilter, then put it back together.
Attachment 20613