the mixing valve is faulty or the plumbing is poorly configured. If the water suddenly becomes very hot, step away from the stream and have the system checked.
Should I turn off the washing machine before taking a shower?
Usually, no. If your shower temperature and pressure remain stable, there is generally no need to stop the washer.
Is it safe to run the washing machine while someone else showers?
Yes, assuming the plumbing and electrical installations are safe and working properly. The main concern is whether the combined demand