Customer called because smoke/carbon monoxide detector intermittently goes off when she runs a lot of hot water. Unable to recreate smoke alarm going off. Water heater is installed properly. Issue is with smoke alarm installed by another company. Advised customer water heater is not causing problem. Customer will follow up with smoke alarm company to include possibly moving location of alarm or installing doors with bigger venting to allow better air flow into confined utility room in garage. Customer has mild sewer smell when dishwasher and disposal are used. Customer claims 1/2 hp disposal is about 10 years old. Company will remove old disposal and install new 3/4 Hp Pro 750 Installed now 3/4 Hp Pro 750 disposal. 1 year warranty. Thank you for choosing LBA. Have a great day!