interceptor trap replacement
https://drainrepairmaidenheadspace.alderbrief.com/posts/essential-guide-to-drain-repair-in-maidenhead-for-homeowners-and-businesses
When your interceptor trap gets full of dust and debris, it's time for a swap. I just replaced mine—took five minutes and made a noticeable difference in how fresh the house feels. No more that musty smell near the HVAC returns.