I recently bought a Marquis Epic tub that came with an inline spafrog system. I am looking to be more environmentally conscious and not throw away the plastic cartridges. I found a relatively easy way to pull the cartridge apart now I need to find a reasonable replica to the larger bromine granules that come in the spa frog canister. Everything I see has the granules an smaller which will diffuse faster, the alternative is to go with 1” tablets but they will disperse at a much slower rate. Anyone already figured this out?