Mister G
Deceptively Old Fart
@Mister G Nice review dude and I'm glad you like it. How high are you filling the water? I find it needs to be around about level with the turbine. Also, while I think of it the turbine action is much better on the TDS-209 even though it is just a small bubbler. There is definitely no real tornado like action on the GB-189 but did you notice that when you clear the piece it absolutely roars?
Even though I am not loving this piece so far I totally agree with you about the quality of Yingmin's glass. To me it looks to be of very good quality. The glass is thick and I could not find any imperfections.
I am going to order one more. Now to decide between the 186 or 187. Hmmmm or maybe I will pick something totally different
EDIT: ALERT ALERT - looks like Yingmin has some new stuff GAS sufferers beware.
I'm filling the 189 same as where you are, just about level with the perc, maybe a tiny bit above it. When you inhale, the water separates and there's water, air pocket, perc, water, then bubbles on top. Mine does roar when you clear, very throaty, much moreso than my D020-D.
@Ratchett maybe pick up the 188 or 189, they are not the birdcage perc, but quality affordable sidecars nonetheless.