Roof Water Tank Overflow

If you find water pouring or dripping from a pipe pointing out of the building or from eaves of roof then a cold water tank is overflowing.

Roof water tank overflow.

Turn on a hot water faucet somewhere in the house to a dribble to prevent a vacuum from forming inside your hot water tank. Hook up a hose to the spigot at the bottom of the tank and drain enough water that the level of the tank falls below the valve in the tank. If the gutter is tilting away from your house it could be causing an overflow particularly during heavy storms. If your cold water feed and expansion tank overflow pipe is leaking there are two possible causes.

Same goes for lack of pitch which causes the water to gather in one spot rather than flowing toward an exit. A failure in the tpr valve could lead to a situation where the tank could even blast. This may be the smaller feed expansion cistern putting water into central heating circuit or it may be the storage cistern for cold water supplying the cold water bathroom taps and hot water cylinder. When rain water was low we switched over to the bore supply which caused water to dribble out of the roof top hot water cylinder overflow requiring an adjustment to the ajax valve every time we changed water systems.

A constant drip in your tpr valve is an indication we must know about. The water leaking from the drain valve is one the signs of a faulty water heater or a valve. In my last house i had two water supply systems. Well if the temperature pressure relief valve is defective that means the tank is prone to some sort of damage.

The pitch of gutter heading towards a downspout can also cause overflow if it s too steep. The water from the hot water heater overflow at the bottom of the tank. So this release of its pressure causes your hot water tank overflow pipe dripping towards the floor where the hot water heater is placed. You need to check the ball on the valve isn t full of water or hasn t slipped down the arm of the valve allowing the water level to get too high in the tank.

Gravity feed rainwater from a header tank and pressure supply from a bore. If water continuous running out of hot water heater overflow and water heater overflow pipe gushing you have to change drain valve. Look inside the tank. If you can see water constantly running or dripping from the water feed try checking the float valve isn t stuck as described in step 2 above.

If the valve is on the side of the tank this should be about 5 gallons.