Social skills training is a type of psychotherapy that works to help people improve their social skills so they can become socially competent. SST is predominantly a behavioural therapy but cognitive therapy can also be used in some situations to maximise the success of SST.
Often a faulty toilet ballcock (fill valve) will cause resonance sounds like these. At least it's easy to check -- here's how to tell if this is the cause. Close the supply valves to all the toilets. If the noise disappears, open them one-by-one till the noise starts again. Replace the ballcock in that toilet.
1 Find the valve behind the toilet where the water supply goes into the wall. 2  Turn the valve to the off position and then flush once or twice to remove all the water in the toilet tank. 3  Make a point to listen for running water after flushing, if you hear water you have not shut the valve off completely. Turn the valve to the off position and then flush once or twice to remove all the water in the toilet tank. 2  Make a point to listen for running water after flushing, if you hear water you have not shut the valve off completely.