Pay for leaky faucet with Security Deposit?

[Calvin Toner]

I rented my house 3 months ago for the first time to a young couple who are great tenants in the sense they pay on time, but have called me 3 times for requested services. This time they want a faucet fixed that was never leaking when I lived in the house. I want to do something to ease back on the rate of service requests they have while still being fair. Would it be legal to charge for the plumber for the sink from their security deposit?