OK for PH Up. Pay attention! Its is VERY IMPORTANT that you ONLY USE 100 PERCENT SODIUM HYDROXIDE! I found this at Lowes. DO NOT USE any product that may contain any other ingredients.
I use Roebic Drain opener. Take 1 Tablespoon Sodium hydroxide and add it to one gallon of water. Shake the hell out of it and woola you now have PH UP! use sparingly until you get a feel for the strength! Works great! Many large greenhouses use this stuff they just buy it in bulk. Its commonly call lye. But you must make sure its pure! |