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7x Outdoor plugs all on one circuit, all back-stabbed. Pool pump plugged in on the last one in the circuit.
(i.imgur.com)
this post was submitted on 06 Aug 2023
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Refrigeration tech here, why is using the back stab holes a bad thing?
Backstab holes create a pretty poor connection with very little surface area and light pressure compared to the screw terminals. It may make a half-decent connection at first, but over time as the contacts oxidize/corrode they become a high resistance point and heat up a lot. Terrible design.
They always fail spectacularly. I've seen countless melted receptacles, usually due to a backstab connection and a high power load plugged in downstream. Since I'm in Canada, space heaters are one of the worst culprits.