Has the stress from repairing all them Ideal boilers youve fitted affected your ability to read?
was replying to op's statement that draining down a c/h sytem brings sludge into the condense trap
Have a good day!!
Edd
Draining down a system wouldn't effect the condense trap its completly different and at no time mixes with the system water.
Condense traps get blocked by poor or no servicing which is why these should be checked yearly minimum
edd