Boiler condensate waste before or after trap

[davidm1969]

Hi all the experts out there

I have just received an annual landlords gas safety record, no warnings or defects recorded. Vaillant boiler Ecofit Pure 825 installed around 2-3 years ago before I bought the property. However there is a comment that the Condense waste should enter drainage after the trap not before, with a quote of £214 to address

"Reattend site, replace the condenser waste to the drainage under the sunk so that it is fitted after the trap and there’s no danger of fumes re entering the room"

Reading online the Vaillant Ecofit Pure 825 has an internal trap and "Yes, it is possible for fumes to come from a boiler condensate waste pipe, although under normal, healthy operating conditions, this should not occur. The condensate pipe is designed to remove acidic water (liquid) produced by the boiler, not gases. However, if the system is not working properly, fumes can escape through this route. "

Does the extra work proposed seem necessary or reasonable? The boiler is working normally. If it's not a defect or a warning does it actually need doing or is this just best practice or something like that? If it was important surely the original gas installation wouldnt have been signed off with the pipework how it is

I have also asked gas engineer for a photo to show where current pipe is and where it needs to be moved to. Can this be done by a normal plumber or will it need a gas safe engineer as it's part of the installation of the boiler.

A bit confused by a certificate saying no warnings or defects but at the same time being advised to spend £214 to fix something

Gas engineer has now come back saying "It’s best practice and how it should be installed." and photo attached.

Grateful for advice/thoughts from all the gas safe engineers here, and thanks in anticipation

Best


David

 

[denso13]

It's absolutely fine the way it is

 

[Madrab]

"Reattend site, replace the condenser waste to the drainage under the sunk so that it is fitted after the trap and there’s no danger of fumes re entering the room"

The whole point of the condi trap in the boiler is to stop that from happening, if that trap did go dry for some reason then worst case then yes POC's could travel down the condi pipe and enter the room. Though it does sound like someone trying to drum up some work.

The other point about condi runs is the need for an air break, which would render his point moot. However the requirement is, for some reason, manufacturer specific. For some reason some Man's ask for an air break in the run regardless of where it terminates, others only when it's discharging into a stack/rainwater downpipe. Other downstream of any trap, other upstream. It can get confusing.

What boiler is it?

 

[denso13]

What boiler is it?

Vaillant Ecofit Pure 825

 

[davidm1969]

The whole point of the condi trap in the boiler is to stop that from happening, if that trap did go dry for some reason then worst case then yes POC's could travel down the condi pipe and enter the room. Though it does sound like someone trying to drum up some work.

The other point about condi runs is the need for an air break, which would render his point moot. However the requirement is, for some reason, manufacturer specific. For some reason some Man's ask for an air break in the run regardless of where it terminates, others only when it's discharging into a stack/rainwater downpipe. Other downstream of any trap, other upstream. It can get confusing.

What boiler is it?

Vaillant ecofit pure 825. So basically if part of the boiler fails so gases are wrongly going through the boiler condensate trap and boiler condensate trap also fails by going dry, putting the outflow on the other side of the water trap in the sink stops the gases going into the property via the sinkhole.

So ideal but a contingency on two things in the boiler going wrong neither of which should happen if the boiler is properly maintained and used normally. Would that be a fair summary based on your knowledge of these boilers or is it a real not hypothetical risk?

 

[denso13]

There is really nothing wrong with the way it's connected and is as per the manufacturer's instructions.