Disassembly & Cleaning
There should be no reason to open the cage or pump, unless the pumping
performance has diminished or stopped working and you have performed
steps 1 & 2 in the maintenance & care section:
1. Turn off the power supply.
2. Move the pump to a dry location.
• Loosen the bolts to open the cage and access the pump.
• Remove the screws from the impeller cover.
• Remove the impeller cover from the pump body by gently shaking the unit.
3. Pull the rotor assembly out of the pump body.
4. Carefully wash the parts with fresh water.
5. Carefully reassemble the rotor into the pump body after cleaning; make sure
the 2 holes on the impeller base and the 2 dowels on the pump body fit
together for proper assembly.
6. Turn the rotor by hand. The rotor should move freely. DO NOT FORCE ROTOR.
7. Be sure the rubber O-ring of the pump body is seated properly.
8. Replace the impeller cover on the pump body and tighten the
stainless steel screws.
9. Submerge in water before operating.
Never run the pump dry!
Place pump at the bottom of the pond. Pump to an external filter.
Note: Be aware that filters reduce the flow to waterfalls and streams. Typically
a reduction of 45% is expected in water flow through a pressure filter.
WARNING – THIS PUMP IS FITTED WITH A THERMAL CUT-OFF DEVICE
THAT TEMPORARILY SWITCHES OFF THE PUMP IN THE EVENT OF
OVERHEATING. THE PUMP MAY START AUTOMATICALLY AFTER THE PUMP
COOLS DOWN.
NEVER RUN THE PUMP OUT OF WATER as this may cause irreparable
damage to the pump!
Using TetraPond Debris Handling Pump to power filters
and waterfalls
Maintenance and Care
BEFORE CARRYING OUT ANY MAINTENANCE, THE PUMP MUST BE
DISCONNECTED FROM THE MAIN ELECTRICITY SUPPLY.
When removing the pump from the pond, DO NOT lift it by the electrical cable
as this may cause irreparable damage to the cable, which cannot be replaced.
Use the handle to lift the pump from the pond.
A rope may be attached to the handle of the pump and to a float (not included),
to allow the pump to be easily located and raised to the water surface.
The design features incorporated in the TetraPond DHP Pump minimize the
amount of maintenance, however, if flow from the pump appears to decline,
check the following:
1. The filter cage has become covered with a layer of debris. To clean cage,
simply remove the pump from the pond and clean the debris which has
collected around the outside the cage.
2. If the pump does not work, check the GFCI, circuit breaker and
electricity supply.
3. The impeller has become jammed or blocked (see section on disassembly
& cleaning).
Hard Water Problems
With the TetraPond DHP pump new design and technology it is uncommon to
have any internal sediment problems, but in areas with
very
hard water, it may
be necessary to remove lime deposits from the rotor assembly annually. Follow
disassembly steps 1 through 4 and then soak the rotor assembly overnight in a
de-scaler (such as white vinegar). After 12 hours of soaking, gently clean the
rotor with a cloth and re-soak for an hour to remove any additional lime scale.
Rinse thoroughly with water. Repeat if necessary. Then reassemble the pump.
Winter Care
As long as the unit does not become iced up, it can run throughout the winter.
However, if there is a danger of icing-up, the unit should be removed from
the pond.
If the pump is required to run throughout the winter, it is advisable to move
it to shallower water (on a marginal plant shelf for example) to minimize
disturbance to the fish resting in the warmer water which collects at the
bottom of the pond during the colder weather.
©
2008 Tetra Holding (US) Inc.
3001 Commerce Street Blacksburg, VA 24060-6671
WARRANTY
Tetra warranties the products listed below will be repaired or
replaced free of charge for the specified number of years from the
date of purchase if it fails to work because of defective material
or workmanship.
Debris Handling Pump DHP3600/DHP4200 3 Years
This warranty is subject to the following terms:
1. Should it become necessary to return the product during the
warranty period, send the product directly to Tetra, Consumer
Services, 3001 Commerce Street, Blacksburg, Virginia 24060-6671.
2. Tetra’s decision on all questions relating to alleged defects and
repair shall be conclusive.
3. This warranty does not invalidate your statutory rights, but
preserves your full benefits.
4. Repair parts or replacement product will be given on an exchange
basis and will either be new, equivalent to new, or reconditioned.
All customer returned parts or products that we replace become the
property of Tetra.
5. The warranty does not cover normal wear and tear, nor any
deterioration suffered through overloading, improper use,
negligence or accident. Similarly, any modification made by the
purchaser to the appliance will invalidate the warranty.
6. Except as set forth in this Warranty, Tetra expressly disclaims any
and all liability for any loss or damage whatsoever sustained by the
purchaser to the fullest extent permitted by applicable law.
Warranty card
on reverse side.
Questions? Problems? Missing Parts?
Before returning the product, please call our
Customer Care Department at
800-526-0650,
Monday–Friday 7:30 a.m. to 5:30 p.m., Eastern USA Time
or email us at
Our Customer Care Department is here to provide assistance
to help you solve your problem.
Please visit us at www.tetrapond.com!
