4G RO Pressure Tank
A bladder is a balloon inside a tank that fills with water when there is pressure that is greater than that already in the bladder. A check valve stops the water from flowing backwards and reserves the water and pressure for use by the device it is feeding. This unique design also eliminates the need for a pump, as the bladder will act as a pump that uses no power.
How do bladder pressure tanks work:
As water pressure changes, the volume of air in a bladder pressure tank contracts and expands. Periodically, the amount of air in the tank should be measured and the tank recharged if the air is too low. Bladder pressure tanks do not provide any useful water storage capacity.
What functions do bladder pressure tanks serve?
• Maintain a desired range of water pressure in the distribution system.
• Minimize pump cycling, preventing frequent starts and stops protecting facilities from damage.
• Protect against water hammer.
Troubleshooting Guide – Check the bladder pressure tank air charge
• Disconnect electrical power to the pump.
• Drain the tank by opening the closest faucet.
• Check tank pressure by placing a tire gauge on the aircharging valve on top of the tank.
• Add air if the pressure is more than 2 psi below the pump cut-in pressure (lowest pressure in the range). Use a tire pump or air compressor. Use caution with an air compressor.
• Release air if the pressure is 2 psi above the pump cut-in pressure.
• Check for leaks in the air charging system. Use a soap solution to check the air charging valve for leaks.
• Re-start the pump and run through a normal cycle to verify the setting.