Not sure if I’m placing ‘tis question in the right place. I purchased an RO system and used it for probably 10 5 gal batches. Last two batches I brewed tasted like Band-Aids. After research I discovered that RO systems do not filter out chloramines. I changed out all the filters on my RO system Flushed as directed with a Chloramine filter remover between my water source and the RO system While I was waiting for all the new filters to come I was able to locate some distilled water and made a batch. Distill water sure is hard to get a hold of. Hopefully that batch is going to turn out as it should. The last batch I made was half distilled water and half OR water with the new replacement filters plus the Chloramine remover. The batch is currently in the fermenter. Before I make the next batch I want to make sure it doesn’t taste like Band-Aids. So I gave it a taste and I think I have Band-Aids again. Besides chloramines could anything else cause my beer to taste like Band-Aids. I use the same process every time to brew cleaning and sanitizing. I have the brewers edge model with the pump. I bought a large batch of 05 dry yeast. I divided up into 45 g packets vacuum sealed and froze it. I’m wondering if this is causing a problem. The last three packs I’ve used I didn’t have any problems could that cause an issue. I was going to go to the pet store and buy a test kit see if there’s Chloramines in my filtered water.