Whether need to add a Accumulator Tank for your pump

What is a pressure tank?

A pressure tank is a pressure storage vessel or pulsation-dampening device designed to hold water under pressure. It extends the time the pump is on and off in each cycle due to the pressure switch not tripping so often. This extends pump life, makes less noise, quietens water hammering and cycling and gives a more consistent flow rate. The pressure tank can also be used to moderate the water flow to match your Hot Water Service.

What can happen if I dont have a pressure tank?

Your plumbing will work without a pressure tank, but if your pump does not have a bypass or is not a smart pump, we recommend it particularly when you have a shower or a toilet where the pump is rarely operating at 100%. Without a pressure tank or accumulator tank the strain will be on your pressure switch, which may cause it to fail early at an inconvenient moment.

Where do I position the pressure tank?

You can add a pressure tank (accumulator tank) on the outlet side of the pump before the water heater or outlets. The pressure tank usually sits side by side with your pump.

Why need to add a pressure tank: 

When you have an inbalance of pressure, this puts the pump under immense load. The excess pressure goes back to the pumps diaphragm. The pump does not like this and the pressure switch will eventually fail or burn out in order to protect the pumps motor. The pump will stop operating. At this point many people think their pump has failed, but it is actually the pressure switch failing when it is protecting the pump. To deal with the excess water pressure you simply add a pressure tank to your system and you will have a smooth hassle free system.

So, if the water is from the city water(faucet), we suggest you add a water tank at the system. 

If the water is static (from tank, river ect), you can dont add a accumulator Tank.