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d) Operation
• Only fresh water with a temperature of no more than +35 °C must be conveyed.
• When pumping contaminated water, contaminations must not exceed the maximum permissible grain
size stated in the techncial specifications. Observe that the diameter of the hose used and the required
connections are designed for such contaminations.
• The product is not suitable for conveying potable water.
• The product is not suitable for conveying corrosive/caustic, flammable or explosive liquids (e.g. gasoline,
fuel oil, nitro diluent), grease, oils, salt water or sewage from toilets.
• The mains socket to which the dirty water pump is connected must be easily accessible. The mains
cable must point downwards from the mains socket so that the water running back at the cable cannot
enter the mains socket.
• If the dirty water pump is to be operated, e.g., in a well, it must be suitably attached, e.g. with a rope.
The rope must be able to hold at least 3 times the weight of the dirty water pump for reasons of safety.
Never attach the dirty water pump via its mains cable; also never use the mains cable to carry, hold or
submerse the dirty water pump!
• The product is not protected against running dry.
• The product must not be operated unsupervised.
• The product must not work in permanent operation.
• No persons must be present in the conveyed medium during operation.
• The product must not be operated in or close to explosive liquids or gases; there is a danger of explosion!
• Consequential damage caused by malfunction or interference at the dirty water pump must be prevented
by suitable measures (e.g. water level indicator, sensors, alarm devices, backup pump, etc.).
• The product is only suitable for use in temperate, not tropical, climates.
• Do not shut off the outlet side of the dirty water pump when it is in operation.
Use, e.g., a corresponding pressure switch to switch off power supply to the dirty water pump in time.
The dirty water pump pressure must not work against the closed pressure side for more than 5 minutes
to prevent damage. The water present in the dirty water pump will heat up even during these 5 minutes.
When the pressure side is opened, hot water will escape; danger of scalding/injury!
• Do not put the product with the intake openings directly into sludgy, sandy or stony ground, e.g. at the
bottom of a garden pond. Use, e.g., a stone plate as a basis. Otherwise, the intake openings may be fully
or partially blocked even after a short time!
Sand, small stones or other hard objects in the conveyed liquid will otherwise lead to increased wear and
reduction of performance of the dirty water pump.
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