Top 30 Frequently asked Plumbing Questions & Straightforward Answers (FAQ)
1. Do I need a plumber or can I fix this myself?
If water is leaking, draining slowly, backing up, or making noise—you likely need a plumber. Small clogs may be DIY, but anything involving pipes, fittings, or leaks should be handled professionally.
2. Why is my drain slow?
Usually buildup: hair, grease, soap, food particles, or mineral deposits. A plumber can clear it safely without damaging pipes.
3. What causes low water pressure?
Clogged aerators, mineral buildup, faulty valves, or hidden leaks. A pressure test identifies the exact issue.
4. My toilet keeps running—what does that mean?
A worn flapper, bad fill valve, or chain issue. These are quick repairs that can save significant water.
5. Why do I hear banging or knocking in my pipes?
This is “water hammer,” caused by sudden pressure changes. Plumbers install arrestors or adjust pressure to fix it.
6. Is it normal for faucets to drip?
No—drips mean worn washers, cartridges, or seals. Fixing this prevents wasted water and bigger issues later.
7. Can a plumber detect leaks inside walls?
Yes. Plumbers use moisture meters, thermal cameras, and pressure testing to locate hidden leaks without tearing walls apart.
8. Why does my water heater run out of hot water so fast?
Sediment buildup, a failing element, incorrect tank size, or thermostat issues. A tune-up or replacement solves it.
9. Should I repair or replace my water heater?
If it’s over 10 years old, leaking, or not heating reliably—replacement is usually more cost-effective.
10. What’s the best temperature to set my water heater?
120°F (49°C). It prevents scalding, saves energy, and reduces bacteria growth.
11. Why does my water smell like rotten eggs?
Often caused by sulfur bacteria reacting with the water heater’s anode rod. A plumber can flush or replace the rod.
12. Are chemical drain cleaners safe?
No. They damage pipes, especially older ones. Professional snaking or hydro-jetting is safer.
13. What can I put down my garbage disposal?
Soft foods only—avoid grease, fibrous vegetables, eggshells, coffee grounds, and bones.
14. Why is my basement drain backing up?
Usually a main sewer line blockage. Immediate professional service is required to prevent flooding.
15. How often should I have my plumbing inspected?
Once a year is ideal—especially for older homes.
16. Can plumbing issues increase my water bill?
Absolutely. Small leaks can waste hundreds of litres per day.
17. Why is my tap water cloudy?
Often air bubbles or sediment. Flushing lines helps, but persistent cloudiness may indicate a municipal or plumbing problem.
18. What should I do if a pipe bursts?
Shut off the main water valve immediately, then call a plumber. Move valuables away from the area.
19. How can I prevent frozen pipes?
Insulate pipes, keep temperatures above 10°C, and allow a slow drip on extremely cold nights.
20. My toilet is clogged but not overflowing—can I keep flushing?
No—flushing can cause an overflow. Stop using it and have it cleared properly.
21. Why do I smell sewage in my home?
A dry floor drain, cracked vent pipe, or sewer blockage. A plumber can pinpoint the source quickly.
22. How long should plumbing last?
Copper: 50+ years
PEX: 40–50 years
Water heaters: 8–12 years
Fixtures: 10–20 years
Maintenance extends lifespan.
23. Why is my sump pump running constantly?
Faulty float switch, wrong pump size, or drainage issues. It needs to be inspected to avoid flooding.
24. What’s the difference between a plumber and a drain technician?
Plumbers handle all piping, fixtures, installations, and repairs.
Drain techs specialize in clearing blockages. Many companies do both.
25. How do I know if my sewer line is damaged?
Warning signs: slow drains everywhere, gurgling toilets, foul smells, or basement backups. A camera inspection confirms it.
26. Can flushing wipes ruin my plumbing?
Yes—even “flushable” wipes cause clogs over time. Only toilet paper should go down.
27. Why is my water bill suddenly high?
A hidden leak, running toilet, or underground line issue. A leak detection test finds the cause.
28. Should I replace old galvanized pipes?
Yes. They corrode internally and reduce pressure. Replacing them prevents leaks and improves water flow.
29. What’s the difference between hard and soft water?
Hard water contains minerals that cause scale buildup. Soft water protects appliances and plumbing.
30. How fast can a plumber get here in an emergency?
Most companies offer same-day or immediate emergency service. Response time depends on demand and time of day.