Tank overflow leaking........

[Chuckles1066]

Sorry if this seems like a no-brainer but I'm a complete duffer where plumbing's concerned

We have two overflow pipes that emerge from the facia boards to the rear of our property........they're well lagged inside the loft and I assume they both come from the water tank.

Yesterday, my wife told me that when she fired up the central heating, one of the pipes started dripping after about 10 minutes. Not constantly but enough to form a wet patch on our patio.

Today, she came home from work and the same thing happened except she said that at times it was a fine jet (like someone peeing!).

Wearing my total duffer's hat, I assume the ballcock thing in the water tank is playing up - we live in a very hard water area and it might be all scaled up?

But why has this started happening when the heating is on? For some reason, I have the phrase "heating header tank" at the back of my mind but I don't know why!

Can anyone explain the most likely problem I have?

Thank you, I am not worthy

 

[GforceJames]

Sounds like the water level in the tank is set to high so as the water expands when the heating is on, it all starts to come out the overflow.

Or your boiler thermostat is playing up and heating the water up to hot.

James

 

[seco services]

check if the tank water is hot maybe pumping over. boiler stat faulty, blocked feed pipe, cylinder coil split.

 

[Chuckles1066]

Thanks for the replies............how would any of those things be affected by the central heating though?

I assumed the water was coming from the cold water tank?

I assumed wrong I guess?

 

[seco services]

what do you mean how would they be affected by the central heating ?

because they are faults that occur on a heating system if their is a fault.

it would make sense to know what tank it is first and give us the correct info.
less info we get the less advise you will get.

 

[Chuckles1066]

it would make sense to know what tank it is first and give us the correct info.
less info we get the less advise you will get.

I did say I was a duffer

Ok, how many tanks can there be in the loft? I know enough to say a cold water storage tank..........is there some sort of central
heating tank as well? I thought heating systems were sealed?

Could one of the overflow pipes come from a heating tank?

 

[seco services]

if you have two overflows you have two tanks one is a cws and a smaller f/e tank for the heating.

 

[bengasman]

At top of forum is section called: “read this first”
Read that first and don’t forget to tell us more about your system.