I think I'll be heading to RR welding supply on my next refill. Thanks for the heads up Sascha.
Pretty creative with the kalk dripper. I'm sure you have it set in the bottle correctly but just in case, make sure you are off the bottom and not sucking up sediment at the bottom.
Also, check your Ca levels buddy. If you do kalk, you are adding Ca as well. Not sure if that was your intent but just wanted to mention if it helped.
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