The skimmer is working fine. Have already ausbrobiert some skimmers. Above all, cheaper, have not so good funtioniert, But here is worth the investment. The material and the structure is great and fits perfectly. I have the Aquamax Eco Premium 8000 directly to the skimmer connected. The volume flow is sufficient to larger Plant parts thus sucking in the filter basket of the skimmer. Even me 5 stars for a good product.