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4. Inspection and Maintenance
4.1 Inspection
The backwater valve should be checked on
a monthly basis by the owner or a represen-
tative of the owner. The manual closure lever
should be shut, locked and re-opened multi-
ple times. Please make sure that after the in-
spection that manual closure lever is in the
Open position.
4.2 Maintenance (Illustrations 7-9)
Attention:
●
The Staufix SWA guarantee will become
void if backwater valve is not maintained
and serviced according to the manual and
the appropriate norms / regulations!
●
Not properly maintaining and servicing
this product could limit insurance claims
based on this product!
The backwater needs to be checked every
six months at a minimum by a qualified and
licensed service technician. During the ins-
pection no wastewater should pass through
the backwater valve.
a) Close and lock the ma-
nual closure lever
b) Remove cover
a) Remove flap and flap
housing
b) Clean all parts
c) Check condition of gas-
kets / seals
a) Lubricate the flap housing
gasket as well as the clo-
sure lever.
b) Replace flap housing in
the proper location (guide
sleeves)
c) Insure covers are replaced
properly – 4.2.1 (see page
12)
d) Check to insure flap hou-
sing is securely in place
e) Conduct function / sealing
test as described in 3
Illustr. 8
Illustr. 9
Apply lubricant!
Illustr. 7
Flap holder (d)
