Reply To: walk-in cooler drains

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fourth year,
What do you mean when you say “and the trap is only to maintain the positive pressure in the unit which is why the depth of its legs is determined by the pressure in the unit”.

I thought that a condensate line trap, in a walk-in fridge, was to protect it’s contents from cross-contamination in case the floor trap failed. Sort of a back-up prevention same as for the air break (usualy 1 in or pipe diameter from flood level rim) in case of a sewer back-up.

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