HELP.. My RO-DI water electrocuted me

[Tarolisol]

I am filling up a bucket of fresh RO-DI water from my new system and when i went to put my finger in the water i got the biggest shock of my life, it almost put me on the floor. Now there are no plugs or anthing electric near it in or anywhere so how does water generate such elctricity. Now im afraid to touch it or turn it off what should i do.