I’d like to thank the postman who keeps dropping elastic bands outside my house. The other day he dropped a couple of large rubber bands, which I duly picked up. This afternoon at approx 4pm my oase filtosmart 100 seal failed. Opening and closing the filter only made the leak worse, which as any one knows this isn’t the best oase design. Thankfully due to my posties, those rubber bands have worked a treat and the leak is fixed. Hopefully giving me enough time to order a new seal.