Lifespan of Galvanised F/E Tank

danjo

Anybody like to estimate the lifespan of a galvanised fill/expansion tank?

I have one in house built about 30 years ago. Main water tank was replaced about 10 years ago but plumber at the time said no need to replace the f/e tank. Should I be concerned?
How would I tell if it needs replacement - apart from waiting for a leak?

Thanks in advance, danjo.

JohnnieK

Depending on water quality the life expectancy is usually 20 to 30 years. If you look inside and see rusty blisters on the side this is a dead cert it's going to pop. Also get a mirror and inspect the bottom if possible if there is rust spots on the outside get it changed. It doesn't just start pouring out. It starts to sweat first before it gets worse.

Micky Dolenz

JohnnieK wrote: »

Depending on water quality the life expectancy is usually 20 to 30 years. If you look inside and see rusty blisters on the side this is a dead cert it's going to pop. Also get a mirror and inspect the bottom if possible if there is rust spots on the outside get it changed. It doesn't just start pouring out. It starts to sweat first before it gets worse.

And whatever you do, don't touch it or test it by prodding.

OP, Get it changed as soon as possible, it is well overdue.

Outkast_IRE

Ya changed as soon as just for the piece of mind , Iv seen a few old galvanised tanks coated with a black bitumious type paint on the inside and they look in perfect nick , but its a rarity to find the tank coated with this .