Pool technician backwashing sand filter system, draining dirty water from the outdoor equipment.
Schlüsselwörter
pool,
backwash,
maintenance,
swimming pool,
filter,
pump,
draining,
technician,
service,
plumbing,
equipment,
cleaning,
valva,
pipe,
hose,
hand,
men at work,
process,
residential,
backyard,
motor,
mechanism,
industrial,
repair,
system,
circulation,
pressure,
hydrodynamics,
liquid,
sediment,
upkeep,
check,
closeup,
detail,
machinery,
professional,
job,
summer,
grey,
black,
white
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