Is your filter pump making a ton of noise? This usually means that the motor has something wrong with it and needs to be replaced. Many times, the problem cannot be fixed and the best thing to do is to just replace the pump. If the issue can be fixed, the cost of that part will be really expensive and you might as well just purchase a whole new motor. The best thing for you to do when they start to run loudly is to turn it off right away and take it to a professional. This way the problem won’t get worse.