Pipework; Start-Up; Maintenance - Grundfos Sololift+ WC Montage- Und Betriebsanleitung

3.4 Pipework

The following drawing shows the maximum length of
vertical and horizontal discharge pipes.
It is recommended that the first part of the discharge
pipe is vertical.
All horizontal pipes must have a fall:
Discharge pipe: Minimum 1 %.
Inlet pipe: Minimum 3 %.
If the discharge pipe is more than 10 metres long, a
pipe one size bigger must be used after 10 metres,
for instance a ∅28 pipe for the first 10 metres and
then ∅32.
5 m
4 m
3 m
2 m
1 m
Fig. 7
The discharge pipe must be taken above the
backflow level (i.e. main sewer level). The pipework
from this point must be made with pipe sizes of at
least ∅40.

4. Start-up

1. Check that the installation is correct.
2. Switch on the electricity supply.
3. Flush the toilet and check that the pump starts
and stops correctly.
If the pump starts, Sololift+ WC is ready for use.
If the pump does not start, see section 6. Fault
finding chart.
4. Check that all pipes and connections are tight.
Note: The toilet must not be used until Sololift+ WC
has been connected correctly.
10

5. Maintenance

Sololift+ WC is practically maintenance-free.
However, regular use and cleaning will ensure
faultless operation and a long operating life.
To prevent unnecessary pumping, it should be
checked that the toilet cistern is tight.
1%
Cleaning the Sololift+ WC
Sololift+ WC is normally kept clean through regular
flushing of the toilet.
For systems which are used rarely, occasional
internal cleaning is recommended which is
performed as follows:
1. Switch off the electricity supply.
2. Put detergent into the toilet bowl and flush.
3. Let the detergent work for approx. five minutes.
4. Switch on the electricity supply and flush.
5. Flush once again when the Sololift+ WC has
pumped.
Cleaning the toilet
After cleaning the toilet, flush it once more with clean
water.
Periods of non-use
If the Sololift+ WC is not going to be used for a long
period, it is recommended to flush twice with clean
water and turn off the water supply to the toilet.
Frost protection
It is advisable to make the lifting station frost-proof if
there is a risk of frost, e.g. in a weekend cottage
during the winter. Empty the tank, see Periods of
non-use or add antifreeze.
Before starting work on the pump,
make sure that the fuse has been
removed, the plug has been pulled out
of the socket or the electricity supply
has been switched off. Make sure that
the electricity supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
Any repairs to the motor and electric
components must only be performed
by trained service personnel.