Build a ph doser/controller - under $100 - tutorial

[mountainman]

Now that is the coolest thing I have ever seen. Bravo to you!!!!!!!!!!!
THat WILL help A LOT of people.

Thanks! Hopefully it helps you too ;-) There is one word of warning that I forgot to put in, depending on your pump, it's difficult to say how well it will hold up to the acid. I imagine it will depend on the pump, but even if the pump has to be replaced every month, no biggy.