Reimburse Tenant for sulfur smell in water?

[Eva Neikirk]

Water heater was old and developed a sulfur smell in hot water...affected shower and laundry.

Replaced water heater (new).

Tenant complained that water still smelled bad, so had her flush the bathroom, kitchen and washing machine lines to get rid of any bad water remaining in pipes.

I sent her a $50 gift card for her trouble ( which she didn’t acknowledge until I asked if she’d received it.)

Now she’s complaining that her towels and husband’s work clothes stink when wet even though they don’t smell bad when dry.

This is a SFR in a fairly nice area in Midtown...I believe she's hinting at free rent ($1288-) for a month or more.

Should I even consider that? What would be a fair compensation?