RiskyPack
Well-Known Member
- Joined
- Apr 7, 2009
- Messages
- 507
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I've been searching around for a long time to find a cheap way to lower the PH in the water. Then finally I found out that phosphoric acid is the thing they use in most product sold by fertilizer manufactures. But of course this does not come cheap at your local grow shop. But here is a great tip for you.. I found that the products sold for cleaning the lime stains in your bathroom consists of: Water, phosphoric acid ( 5-15 %), citric acid (The same acid as lemons contains) and a small amount of silicones. I figure that the level of silicones will be so small that it will not harm the plants in any way. Well I hope not because I will try it out when I get my PH test kit, and I'll let you know how it goes down. The price is about 4 euro for 1 liter. While it is about 20 euro per liter in the growth shop.