///Filter housing does not fill completely
Inlet water, booster & filters

Filter housing does not fill completely

Poor inlet flow leaves air in the filter housing.

Safety first: Switch off the pump, release all pressure (open the on/off valve or bleed-down valve) and lock out before you open any high-pressure part. Never put a hand or tool near a running jet.
1Check the causes, most likely first 0 of 2 checked
01Dirty filter element Most likely

Flow is blocked.

How to check: Replace the element.

PhotoArt. no.DescriptionReplaces OEMExcl. VAT
10633 Filter element 0,5 Micron 10"
FilterKMT, BFT, Flow
Flow A-1449 € 13.08
10634 Filter element 10 Micron 20", 49834716
FilterKMT, Flow
KMT 49834716 € 19.08
10635 Filter element 10 Micron 10", 10106722
FilterKMT, Flow, CMS / Tecnocut
KMT 10106722 € 6.60
10661 Filter element 5 Micron 10"
FilterKMT, BFT, Flow, STM
BFT XF58/220 · STM HD400011 € 10.20
10714 Water Filter Housing. SS, 250 psi, 3/4" FNPT, 72118339
FilterKMT
KMT 72118339 € 286.80

02Inlet pipe too small or low supply pressure Possible

Not enough water arrives.

How to check: Check pipe size and supply pressure.

Related problems

General advice based on manufacturer manuals and service practice. Always follow the manual of your machine. Not sure? .