Bosch SGS4012 D/W underfilling Home › Forums › Trade Technical & Spare Parts Forums › Trade Technical Enquiries › Bosch SGS4012 D/W underfilling This topic has 1 reply, 2 voices, and was last updated 13 years, 8 months ago by Seamy. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts July 17, 2012 at 7:14 pm #70515 SeamyParticipant Would I need a pressure chamber or a fill side/ metering tank to resolve issue of bad wash performance. If customer throws in a pint of water it washes great she tells me. Suspect its gunged up but want to go prepared. July 17, 2012 at 7:25 pm #378259 CriscoldParticipant Re: Bosch SGS4012 D/W underfilling Normally transfer hose between pressure chamber and sump blocked and just needs removal and clearing Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In