Most water supplies, at least here are no longer using chlorine in the water, they are using chloramine which cannot be evaporated off with aeration so I am not sure what amounts are in the water when brewing compost tea after aerating the water for 45 mins.Cayennemist said:1 thing to remember; you need to de-chlorinate the water you add to the batch, or you are going backwards.
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That being said, why not just make a second batch with the extrra de-chlorinated water? Unless you have an ubundance of chlor free water.