Blocked kitchen sink in L'Hospitalet de Llobregat: how to unblock without damage
Resumen rápido
80% of kitchen sink blockages are in the trap.
¿Qué está pasando?
Blockages build up in the trap under the sink.
Causas más probables
Grease in the trap
altaPouring oil down the sink is cause #1.
Food in the strainer
altaRice, pasta and coffee grounds swell.
Communal stack blocked
bajaIf neighbours share the issue it's the stack.
Pasos de diagnóstico
- 1
Try hot water + baking soda
Pour baking soda and vinegar.
- 2
Remove the trap over a bucket
Trap nuts loosen by hand.
⚠ Parada de seguridad: Don't force with a wrench. - 3
Use a snake if deeper
Use a manual drain snake.
Cuándo llamar a un profesional
Call if water still won't drain after cleaning the trap.
Coste orientativo en L'Hospitalet de Llobregat
60–150 €
Call-out and mechanical unblocking.
Contexto local · L'Hospitalet de Llobregat
In L'Hospitalet de Llobregat older buildings have cast-iron stacks.
L'Hospitalet de Llobregat is Spain's second densest city and it shapes everything. In Collblanc-La Torrassa we work in 1960s–70s blocks whose narrow light wells force us to carry full plasterboard sheets down the stairs, not the lift. Santa Eulàlia and La Florida have buildings whose communal stacks block up every few years — when we repair a bathroom we have to warn the leak may not be theirs. Bellvitge is dominated by 12-storey blocks still running 1970s gas pipework, so we coordinate water shut-offs with the building manager. Street parking is scarce, so we unload before 9 a.m.
- Comarca: Barcelonès
- Población: 269.382 hab.
- Parque de vivienda predominante: piso-moderno
- Año medio de construcción: 1968
- Códigos postales: 08901, 08902, 08903, 08904, 08905, 08906, 08907, 08908
Segunda ciudad de Catalunya, con alta densidad de bloques de los 60 y 70 en Bellvitge, La Florida y Collblanc.
Preguntas frecuentes
Does caustic soda work?
Only for localised grease.
How fast can a plumber arrive in L'Hospitalet de Llobregat?
Same day during working hours.
¿Prefieres que vayamos nosotros?
Diagnóstico y presupuesto en L'Hospitalet de Llobregat normalmente el mismo día.
Pedir presupuesto gratisProblemas relacionados en L'Hospitalet de Llobregat
Más sobre Plumbing: leaks, blockages and water
Sources and regulation
- CTE DB-HS 4 — Suministro de agua — Código Técnico de la Edificación