Isar Isar HE24 Condensate S Trap blocked with black carbon

[dcj99b]

I've never seen anything like this.
The S Trap was blocked with almost a solid lump of carbon that was shiny, lik coal, when I broke it up.
Has anybody any idea if there is a fault causing this?
Symptoms, lockouts, and listening to the flue outside a sound of gurggling water,inside lots of vibration, boiler fires but poor heat output.
Thanks
Derek

 

[Tibbot]

The sediment will be aluminium oxide from the heat exchanger. Normal but it should be annually cleaned off the HX surfaces and out of the trap.

 

[libby lou lou]

Good for using in bombs.

 

[dcj99b]

Damn, I've dumped it in the bin and it has gone to the tip.
Perhaps it would be worth money????
Perhaps a budding business opportunity, cleaning out S traps and selling the products.
It reminds me of a dilemma we had at work with our boiler ash, it was waste for us and needed a licence to send of site as hazardous waste, lots of paperwork, but was the raw materials for the guy who made it into building blocks......
ttfn Derek