backwashing
Filter cleaning reversal
Backwashing is reversing the flow of water through a filter to flush out accumulated debris.
Pool and aquarium filters require periodic backwashing to maintain effectiveness: The pool guy comes weekly to backwash the filter.
In a different sense, backwashing is the flow of liquid from mouth back into a container while drinking—generally considered disgusting: Don't backwash into the milk carton.
Information distribution channels
- gravelLoose small rock fragments
- sandFine rock particles
- sedimentParticles settling in liquid
- particlesMinute pieces of matter
contaminants · debris · turbidity · pressure drop · rinse cycle · flushing · nozzles · valves
Basin for aquatic recreation
- filterPorous separation device
- cartridgeSealed container for supplies
- sand filterGranular water purification system
- pumpFluid-moving machine
skimmer · chlorine · algae · debris · water clarity · pool maintenance · rinse cycle · pressure gauge
Liquid reversing course
- pressure differentialDifference in force per area
- check valveDevice allowing unidirectional flow
- water hammerPressure surge in pipes
- surgeSudden powerful increase
reflux · regurgitation · pipe · plumbing · cross-connection · siphonage · preventer · contamination
media
Information distribution channels
particles · contaminants · debris · turbidity · pressure drop · rinse cycle · flushing · nozzles · valves · backflow
swimming pool
Basin for aquatic recreation
- filterPorous separation device
- cartridgeSealed container for supplies
- sand filterGranular water purification system
pump · skimmer · chlorine · algae · debris · water clarity · pool maintenance · rinse cycle · pressure gauge · flow rate
backflow
Liquid reversing course
- pressure differentialDifference in force per area
- check valveDevice allowing unidirectional flow
- water hammerPressure surge in pipes
surge · reflux · regurgitation · pipe · plumbing · cross-connection · siphonage · preventer · contamination · potable water
double-dipping
Reusing a bitten dipper
- salivaMouth's digestive secretion
- germsMicroscopic disease agents
- contaminationIntroduction of impurities
beverage · bottle · glass · cup · straw · backflow · hygiene · etiquette · sharing · bacteria
- Filter Maintenancefilter replacement, filter change, clogged filter, annual checkup, lint trap
- water filtrationfiltrate, underdrain, clogging, straining, flow rate
- Water Treatmentwater plant, filtration, filtration system, chlorination, purification
- ion exchangeresin, resins, deionization, regeneration, counterion