For as long as supermarkets have been selling refrigerated and frozen food from display cabinets, there have been issues with condensate drains and more specifically with blockages.
The problem is endemic to the supermarket industry – I would vouch that every person who has been in a supermarket will have seen the black and yellow absorbent strips at the foot of a cabinet – and although it causes thousands of hours of downtime and service callouts, as well as often causing a safety hazard, it is a problem that …