We identified the problem that some people have with push-to-connect seals; it was a sneaky little issue but we found out why and implemented a corrective action. If your pump doesn't leak right away then it's fine and you have nothing to worry about. But for anyone who experiences this problem out of box, we will send you a replacement of this tube carrier part immediately, just call us. We're here to help and I'm sorry for any inconveniences we may have caused.
Also, the air leaking in the intake side is related to this seal problem, please call in and get your replacement.