All- I have three tidepool 1 W/D filters. Marineland has discontinued the replace biowheel for these. Does anyone have a solution to "regenerate " these or know of someplace that would sell aftermarket parts or have a lightly used biowheel they would want to sell? How do you think putting a bunch of bioballs in the sump where the biowheel was would work? Do you think soaking the used biowheel in vinegar and water would clean the calcium deposits an make so it can get a few more years out of it.