My tenants are saying that a foul raw sewage smell is coming from the aircon vents, even when they are turned off..
I have a duplex, so each floor is serviced by its own aircon unit, so i cant see they could be causing it, again tenants say its happening even when turned off.
They have blocked up vents and smell has gone...
Any ideas or advice, is this a community problem or local council..
Im thinking drains need floushing out...
Rob - Estepona