A friend of mine has had a new boiler installed. This is of the condensing variety and the condensate goes from the kitchen into their conservatory.
The conservatory has a washing machine and has the waste water trap/outlet. The conservatory is a lean to type and not heated.
The washing machine empties into a typical setup with a vertical pipe and U-trap which then empties into the waste outlet.
The plumber has T-d the condensate run into this vertical of the washing machine trap.
Apart from leaking which is another issue, I thought the condensate shouldn't go through further traps for risk of freezing. Am I correct?