Ok I admit that was a stupid idea.

I brought my PH down to arround 7 the lowest I can see on my test kit. And I started aerating with a nozzle. I also used the power washer when I cleaned my deck. That works very good. I got my TA down to around 120 on Saturday and it went back up to 130 Sunday. My PH went back up to 7.6 so I added last night more acid and will aerate today more.

Guido