A failure of the hot tub Water Pumps can cost the owners of 100, if not $ 1,000 of additional damages. Check your pump correctly can reduce the risk of damage. A Suction Pump will not last forever, and eventually had to be replaced. Looking for abrasion and be proactive!
I always recommend that you you look for signs of wear every time you replace or clean you filter system. At this time, take a good look at the spa pump. Have you ever see any signs of water? Is the pump motor make noise louder than normal? Is the motor running hot? If the answer is yes, it is the time to see whether you need to replace or repair the spa pump.
If you find signs of Diaphragm Pumps leakage, then you need to look closely, make sure where does it coming from. Check the O-rings and couplers to ensure that they are tight, do not leak. If you see water dripping from the shaft, this usually indicates a leaking water pump bearings. Replaced immediately, because this will lead to greater and more serious leak. At the same time, pay close attention to any micro-cracks in the pump housing. Pump motor vibration will soon become a small crack into a big crack.
A spa double diaphragm pumps should run quietly, with a slight 'hum'. If you hear a loud metallic noise or vibration then this is it a sign of some internal Air operated double diaphragm pumps. The bearings may be loose or seized. If so, then you need to get this fixed! If the noise is from the motor of the pump, then this is a sign of internal damage and, therefore, should be fixed before the motor seized.
Although poor performance may be caused by the jet Air Operated Diaphragm Pumps, it is not possible. Whether it is a spa pump works or does not work. I will pay attention first to the blocking filter or the first week of the aircraft as a result of clogged intake. If it looks good, you should check the pump house. Look Inside the impeller and make the assurance that there is no obvious obstructions.