Earthship Biotecture - Sand Filters


How to make sand filters for drinking water! - They are cheap, easy to maintain and long lasting! Please note that these filters, if maintained correctly, filter out virus and bacteria. However, the do not filter out chemicals or heavy metals. They are great for filtering rain or snow water or any water that has no chemicals. A note on glueing the PVC parts - apply (clear) primer to both PVC surfaces, then apply PVC cement to one of the surfaces; connect them together, do a half-turn rotation and you are done! On bulk head threads, use thread sealant to prevent leakage.

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