JMJoe Marchese

1. Article · Aug 21, 2026 · Joe Marchese

   When the Problem Isn’t a Clogged Drain Line (opens the original)

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   When a condensate line fails to drain properly, the most common cause is a clogged drain line. However, there are other possible reasons as well. An improperly sloped drain line can also cause it not to drain. The general recommendation for proper drainage is to have at least a ¼-inch per linear foot slope on horizontal runs. The trap also needs to be deep enough to overcome the evaporator fan’s pressure. Of course, another possible cause common on walk-in freezers is a frozen drain line, usuall

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2. Article · Jul 29, 2026 · Joe Marchese

   Avoiding Costly Mistakes with Flares, Nuts, and Bolts (opens the original)

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   A common mistake when servicing refrigeration equipment is stripping or damaging the threads on nuts, bolts or flared connections during reassembly. What begins as a relatively simple repair can quickly become a more complicated and time-consuming job. Always hand-tighten the connection first. If you cannot engage the first few threads by hand, do not force it on with a wrench — remove it and find out why. Once the threads are damaged, the nut, bolt, or flare will most likely need to be replaced

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