When a positive displacement pump runs dry, it can lead to several issues, including overheating and damage to the pump components due to lack of lubrication and cooling provided by the fluid. The absence of liquid can cause the pump to experience excessive wear, cavitation, or even mechanical failure. Additionally, if the pump is not equipped with any protective measures, such as a thermal shutdown or pressure relief system, it may sustain irreversible damage, leading to costly repairs or replacement. Regular monitoring and maintenance are essential to prevent such situations.
it runs without fluctuation i.r continuous flow......
That sounds like you have a good sump pump and it's really trying hard to get rid of excess water.
Yes if the installer used the wrong type of check valve as the flapper is reseating
That happens when the supply is turned off, and the motor runs down and stops.
Many septic systems are 'passive'. That is, the final waste water runs by gravity to a field downhill. However, in the powered system there is a 'settling' tank, for the solids to settle and be aerated or subject to microbial action. This tank has a drain near the top to allow 'black water' to trickle into the 'pump tank' . A pump is in this final chamber, switched by a float. When the water gets to a desired level, the float switch operates and turns the pump on, as water drops to an acceptable level (usually after 50-100 gallons have been pumped out) the pump is automatically switched off by the float and water once again trickles in from the main settling tank.
The fuel pump is located in the fuel tank and is cooled by the fuel. If you ran out of gas it could cause the fuel pump to overheat and burn out.
To find the total displacement, we consider the dog’s initial and final positions. The dog runs 80 meters to chase the ball and then returns 80 meters back to its starting point, resulting in no net displacement from that segment. Finally, when the dog runs 20 meters south, the total displacement is 20 meters to the south. Thus, the total displacement is 20 meters south.
Most likely need water pump could over heat and damage head gaskets
To calculate the total displacement of the dog, we consider its starting point as the origin. The dog runs 80 meters north, then returns to its master (which we can assume is at the starting point), and finally runs 20 meters south. Therefore, the total displacement is 80 meters north - 20 meters south, resulting in a net displacement of 60 meters north.
If water does not flow through your pump while the pump is operating the pump will "loose prime" what remaining water in the pump will boil from the friction of the impellor spinning, this will turn the water to steam and melt the plastic parts. Also known as the pump has "Dry Run"
Electricity
The pump runs on 12 volts.
I was told if the battery is "insufficient" it makes the starter crank slower, the fuel pump pump slower and hence ruins the car. I think that's a bunch of hooey b/c once started, the car runs off the alternator. Nevertheless, my freind believed the mechanic who charged him $1500. for a new battery, starter, fuel pump and other crazy things he mentioned but I just cannot remember. My advice is, hook the terminals to the correct wire (positive/negative) and fire it up!
BAD fuel pump relay.
20m
its 800
20 meters