CORRECTION: This kit costs .95, not . In this review we take a look at an awesome (and inexpensive) water testing kit which you can use to check if your tap water is up to the challenge of hydroponic growing. Check out the full review at http://www.outdoorhydro.com/blog/2013/8/4/watersafe-hydroponic-water-test-kit Buy a water test kit here: http://www.discovertesting.com/products/display_products.sd?iid=3324&catid=26&loc=show&headTitle=Hydroponics%20Water%20Test%20Kit Video […]

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