Boiler pressure does not increase when turning filling loop ❓

[@selvynchristophers1644]

Main issue is limescale buildup causes not letting pressure into the system through this loop as it can get clogged easily

[@Exodia1986Necross]

I have ( Vaillant eco tecpro ) and Iam noticing it is losing pressure as the pressure gauge indicates , I pressurised it myself 4 months ago but I just would like to know why its losing pressure ? ( main issue ) thanks man your vids are really really helpful

[@Exodia1986Necross]

my Vaillant eco tec pro is losing pressure , I know I need to pressurise it ( as I did this before ) but I would like to know why there is pressure drop ?

[@01adaada29]

Baba didn’t leave you alone bro . He is more interested in filling loops😊

[@IbrahimAliSapnin]

Or they’re only doing 1 side of the filling loop