I bought this filter after countless searches for "custom" filters. I needed a relatively cheap filter (to buy and maintain). Not many people think retrospectively about the money that goes into filters, but I didn't want to spend a lot of money on charcoal and biopacks that companies sell. s15 is great for all my needs. I can use different filter materials, the flow is adjustable, and it sold for almost $9! HOW I SET UP THE FILTER I decided to use the two filter packs that came with the filter and glue them in one place. Sponge that comes with the kit. I wasn't satisfied with the filter, so I removed it and used a small bag of polyfill to mechanically filter the water. I placed it in a small section below the inlet and tied the pouch over the inlet. I then used two blank sections for biological filtration. I added some scourers and some k1. I used a red scrubber and k1 from my old filter and also added some new ones. I've also tried different methods of pasting. Using a bag of filter material or even stockings will keep the filter in place, but you can also just stuff the mop over the k1 to keep it from leaking. Overall I think this is a great filter and I love the price. . I would even pay more for it!
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