Because the function of booster pump is to increase the pressure of water, and the water sucked into the pressure tank is only a small part, which is not enough to cause too much influence on the pressure tank and will not deflate the pressure tank.

However, it should be noted that if the pressure of the booster pump is too high, or the pressure tank is poorly sealed, the pressure tank may be deformed or broken. Pay attention to adjusting the pressure and checking the state of the pressure tank when using it.