Hiyya Ya'll.
I've just received my 7 litre DI unit and been playing with it on my own windows. I noticed quite a few microscopic particles of resin were getting through onto the glass.
I went out looking for an in-line fuel filter like this:
but couldn't find one. In desperation, I cut up a bit of a dishwashing sponge and shoved it down the outlet hose. That seems to have done the trick and not slowed down the flow significantly.
* Is it normal to get tiny bits of resin coming out of a unit?
* Do they attach strongly to the glass or will they drop off in time?
I don't really want to be relying on bits of washing up sponge, but at least it seems to be working to filter the bits out. Now the glass is drying absolutely spotless.