Hot Water In Expansion Tank

[Yat]

Hi All

I noticed recently that the water in my expansion tank was warm to the touch and in the last few days water have been dripping out of the overflow pipe as a result of the condensation.

The ironic thing is that it only drips in the morning but not in the afternoon.

As its summer, only the hot water is on. I have reduced the pump to no. 1, the lowest setting.

Should I be worried about this?, if so, what could be cause of this?

Thanks in advance.

Regards

Yat

 

[WHPES]

Is the tank level correct (should be about 3 inches from the bottom when cold to allow room for expansion without losing through the overflow).

Correct this then see how it goes. It's normal to get warm water coming in through expansion as the system comes on (but should not be hot water).

The washer may need changing and the system will almost certainly have lost its inhibitor through dilution so you need to top up.

Check you are not getting overpumping when the system comes on (water coming out of the vent pipe). If so could inidicate problem such as blockage.

 

[Yat]

Thanks for the prompt reply. The water is about 3inches from the bottom. The sides above the water is dry so the ball cock is working correctly.

The system was power flushed in October last year. This has made a tremendous improvement to the central heating system. At the same time, Fernox inhibitor was added. I presume over the pass months this must have been diluted as suggested.

When the system was power flushed, I told the plumber to install a Magnaclean system and I clean the crap from it last month.

But will put some more inhibitor in to be on the safe side.

Can you please tell me if I were to put another brand of inhibitor to the system, will it be o.k. mixing it with the diluted Fernox inhibitor?

Thanks for your help once again.

Rgds

Yat

 

[prs1]

another brand will be fine

 

[Yat]

Thanks for your help.

Rgds

Yat