How do We Repair a Water Tank with a Burst Internal Bladder?
Diagnosis of a burst water tank bladder: as we outlined at WATER TANK BLADDERS & CAPTIVE AIR, if you remove the cap from the air valve on the top of your water tank and depress the pin in the center of the valve, normally air will hiss out. Don’t hold this valve pin down or you’ll lose the air charge. But if water comes squirting out of this air valve, the captive-air bladder type water tank has burst or become torn or leaky, and repair is needed. The illustration at left is courtesy of Carson Dunlop. A second symptom of burst water tank bladder: if air is found squirting out of plumbing fixtures it’s possible that the cause is a burst bladder in the water tank; the tank’s air charge is being forced out into the building plumbing system. A third symptom of burst water tank bladder: if the water tank is full or nearly so and you are unable to drain water out of the tank, a burst bladder may be blocking the tank at its bottom. A burst water tank bladder can collapse at the water tank bot
