Just make a mixture of 1 part acid to 3 parts of water. ADD THE ACID TO THE WATER, AND NOT THE OTHER WAY ROUND.

Wear goggles and chemical gloves, and keep the kids away.

"Little Willie's dead and gone.
His face you'll see no more.
For what he thought was H2O,
Was H2SO4."

The same for Muriatic acid. Be careful.

Pat