Condensate teed in to kitchen sink easte

[Matt0029]

Anyone come across gurgling condensate traps on boilers? When the condensate line is tee'd in to the kitchen sink waste? Have managed to stop it by installing a inline aav adapter on the trap. Anyone else noticed this.

 

[Scott_D]

Yeah
If its slow draining it creates a back pressure.
If you look at the boiler MIs you should tee before the trap and mcalpine make a trap for this