Settled
pollutants
Maintenance Manual
Emptying
>Large contaminants are removed from the
chamber.
>The settling sludge accumulates at the bot-
tom of the chamber and is removed through
the emptying pipe or the manholes.
Uponor Vault is a lter chamber for stormwater
treatment from coated catchment areas up to 20
ha in size. The size range extends to connections
up to Ø 1,200mm. Uponor Vault can also t in
narrow spaces, such as under trafc, parking, or
green areas. The treatment involves three stages:
1) coarse separation using a grid, 2) separation of
solids, and nally 3) ltration of minor impurities
and metal ions.
Check
>Inspect the device visually after heavy rains.
Maintenance
>The device is normally dimensioned to be
emptied of sludge once a year.
> The need for the removal of debris and oa-
ting pollutants is visually checked.
> The lter change interval is from 3 to 5 years.
The length of the replacement interval is de-
termined by sampling. If sampling has not
been carried out, we recommend that the
lter be replaced every three years.
>The sampling is carried out from a separa-
te sampling well located downstream of the
lter chamber.
> The need for removal of oating pollutants
(e.g., oil) is visually checked. If there is an
oil bilge in the chamber, it is replaced when
lled, and only the top of the bilge is visible.
Emptying pipe
Inlet
Outlet
Filter cassettes
Floating
pollutants
2 | Uponor Vault
