Did some plumbing now tundish is running

[andytw]

Previously posted this https://www.diynot.com/diy/threads/need-to-tee-off-this.480621

So..we turned off the cold main, open up the cold tap, waited for it to stop running, did the plumbing. Turned the main back on, checked for water tightness, all good. Teeing off is achieved. Outside tap will be fitted another day.

Just been told there is a sound of running water and this has been located to a tundish alongside the Megaflow (or similar).

Can we have upset it doing such a simple task ?

Way forward ?

 

[PrenticeBoyofDerry]

The pressure release valve my have gone faulty, or you have excessive pressure or it needs resetting.

 

[Newboy]

Try regenerating the airgap


https://www.heatraesadia.com/information/frequently-asked-questions.htm

 

[andytw]

Looks like the 6 Bar PRV / 3.5 Bar Limit on the mains inlet has gone faulty. Don't believe it has an air gap as it has an expansion vessel. EV is out of shot top right. This is my son's house. The are looking for a certificated person.

 

[PrenticeBoyofDerry]

If the PRV has been operated, if debris has got into the seal, it can prevent it from closing again.

Then there is also the pressure reducing valve that could be letting more pressure in the system.

 

[andytw]

We did wonder about a bad seal and bounced it a few times to no avail.
Having said that it has now settled down and is not passing water.
Son is looking to getting it swapped next week.

 

[rules&rulers]

so defo not a megaflow then,

The water passing through the tundish,is it cold or Hot ?

Instructions on santon site may help.

 

[andytw]

No not Megaflow. I posted that from home before I got there. It is (was) passing cold water.

 

[dilalio]

Balancing valve can be reset.

 

[andytw]

Balancing valve can be reset.

Professionally or d-i-y ?

 

[rules&rulers]

That cold water combination valve is a serviceable item,diy is not recommended as the reason behind water passing through the tundish discharge needs to be found.

Not many people have these cylinders serviced,Not many people know they require periodic service/maintenance.

Good units thou.