Re: Bosch dishwasher leaking water from internal side tubing
You should NOT use any sealant around the O rings at all. The only reason they would leak is if the plastic water matrix is not located properly into the water softener unit. So the fix is simple, remove the matrix, clear away any trace of adhesive, discard old O rings and then fit THESE into their respective positions then carefully relocate the matrix without damaging the new O rings. Simples!