Drip Leg (Sediment Trap) for Fuel Piping

A correct drip leg, or sediment trap, installed What are they?  What is the difference between a proper and improper drip leg? A drip leg, or also

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What is a Sediment Trap? – JMC – Bay Area Building Inspection Services

Came across this today. Will a drip leg work when it is upside

Drip Leg (Sediment Trap) for Fuel Piping

Water Heater Repair Install Maintenance

IAPMO

Sediment Trap

Sediment Traps / Drip Legs - Nonprofit Home Inspections

Sediment Traps, HomesMSP

Can I use this bottom cap for my gas stove ? : r/Plumbing