I protected a new sofa today using the horrendously expensive Prochem solvent fabric protector (£63 plus VAT for 5 litres)
Anyway whilst pouring unused back into the container the protector out of the sprayer was slightly brown, I thought that was strange as I cleaned the sprayer so thorouthly, then realised it must be the plunger as I have found it rusted up like this before.
Its contaminating the contents.

I have an older style Gloria too, but don't get this problem with that. Do Gloria do a non corroding pluger? Seems to me a really stupid design flaw. anyone else found this?
Waters not getting in the plunger in any serious amounts
