what do you use to ph your water

Tell me what do you use and how good of results you get.

I use growth technologies ph down, which is phosphoric acid and i use growth technologies liquid silicon as a ph up as this has a high alkaline value plus it gives the plants extra strength

viniger. my water here is a little alkaline.

Go to a store and buy a ph kit this will include ph up and ph down. The kit will include a a dropper bottle that has a liquid that turns your sample a certain "color". That way you can compare it to a chart and see where your ph is and if you need to adjust it.