Drainage glossary
207 terms explained in plain English, written for London property owners, landlords and managing agents rather than for engineers. What each one means, and what it means for you.
A
B
- BS EN 12056
- BS EN 752
- Back inlet gully
- Backdrop connection
- Backfill
- Backing up
- Basement pump chamber
- Bedding and haunching
- Below-ground drainage
- Blocked air admittance valve
- Blocked interceptor trap
- Blocked lateral drain
- Branch connection
- Bubbling toilet during rain
- Build-over agreement
- Building Regulations Part H
- Building control approval
- Building debris
- Buildings insurance and drains
- Bypass pumping
C
- CCTV drain survey
- Cast iron drainage
- Catchpit
- Cesspit
- Chamber base and benching
- Chamber rebuild
- Channel drain
- Clay pipe
- Coffee grounds
- Collapsed drain
- Combined sewer overflow
- Combined system
- Concrete or grout in a drain
- Confined space entry
- Consequential damage
- Cover replacement
- Cracked inspection cover
- Crawler camera
- Cross connection
- Cured in place pipe lining
D
- Damp under a suspended floor
- Defect grading
- Deposits at a bend
- Descaling
- Detergent scum
- Displaced joint
- Downpipe
- Downpipe disconnection
- Drain relining after roots
- Drain repair guarantee
- Drain sealing
- Drain smell
- Drain tracing
- Drainage field
- Drainage maintenance contract
- Duty of care for waste
- Dye testing
F
G
L
M
P
- PVC-u drainage
- Patch repair
- Percolation test
- Permeable paving
- Permit to work
- Petrol interceptor
- Pipe bursting
- Pipe deformation
- Pipe gradient
- Pitch fibre pipe
- Planned preventative maintenance
- Ponding
- Post-repair survey
- Pre-adoption survey
- Pre-purchase drain survey
- Private drain
- Property boundary
- Pumped drainage
- Pumping station
- Push rod camera
R
S
- Saddle connection
- Scale build-up
- Section 24 responsibility
- Septic tank
- Service charge
- Service defect
- Sewer
- Sewer records
- Shallow fall
- Shared drain
- Silt build-up
- Silt trap
- Sinkhole
- Slow drainage after rain only
- Slow shower tray
- Slow-draining sink
- Smoke testing
- Soakaway
- Soil pipe
- Soil vent pipe
- Sonde
- Stack
- Standing water in a gully
- Standing water in a survey
- Structural defect
- Subsidence and drainage
- Sump
- Surcharging
- Surface water drain
- Surface water flooding
- Survey report
- Sustainable drainage systems
T
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