Never shower when washing machine is on: Why it is dangerous
Why it’s unsafe to shower when the washing machine is on (photo: Freepik)
Using a washing machine and taking a shower at the same time can pose a risk if your electrical wiring is old or faulty. It may lead to low water pressure and even electric shock hazards, according to Better Homes & Gardens.
Low water pressure and temperature fluctuations
Depending on how your plumbing system is designed, the washing machine and shower may share the same water supply line. When you take a shower while the washing machine is filling its drum, water pressure can drop noticeably.
If you need to wash a large load of laundry, it’s better to run the washing machine cycle after your shower.
When the washing machine fills with water, it opens an electric valve and can suddenly draw cold water, causing a short-term pressure drop.
This is especially problematic if there are:
- Old, narrow-diameter pipes;
- A single riser serving many apartments;
- Generally low water pressure in the building;
Risk of electric shock
Water conducts electricity well, and in a bathroom, you are in direct contact with both water and surfaces.
The danger increases if there is:
- Poor or missing grounding;
- Old electrical wiring;
- A damaged washing machine;
- Faulty electrical outlets;
In such cases, a potential current leak may travel through plumbing or wet surfaces.
Electrical overload
In addition, a washing machine, water heater, and other appliances can overload a single electrical circuit.
This may cause circuit breakers to trip, wires to overheat, and, in old wiring, insulation may even melt.
When it is relatively safe
Using a washing machine and taking a shower at the same time is generally safe if you have:
- Proper grounding;
- Leakage current protection (RCD);
- Modern electrical wiring;
- Properly functioning bathroom outlets.
