[Doris, the skimmer is fine. It doesn't break, but the pump may need to be replaced in the future. The entire unit can be cleaned by soaking it in vinegar and water overnight to renew it again.
I used to run a Bakpak, and installed a wooden airstone in the reaction chamber connected to a pump to increase the bubbles in the skimmer. It did okay, but the Remora did far better.]