Ever experienced on shampoo bottle pumps refused to extract the few percent of remaining shampoo when it runs low. it's frustrating and annoying seeing the remaining shampoo you can't access to with ease. Transferring between bottles means to be time consuming not to mention the messy clean up after. This is a simple instructable to save time and money.
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Step 1: Make Your Collars
Take out the empty bottle pump assembly and cut the threaded portion. Save the collar and send the rest of the plastic piece for recycling
Step 2: Work Itself Out
Connect two bottles shown as the photo. Make sure threads engage on both bottles. Check if the upper bottle empty out in a few hours. Save the collar for the next round. Enjoy not being wasteful =)
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