Step 5 - Make your own Dumbbells - Mix the concrete

 You can mix the concrete right in the mold or in a separate container, as shown at right.  Keep in mind that you want to avoid breathing the dust.  cement dust isn't good for you.  So, if you have a paint mask or other dust mask, it is a good idea to wear that. 

But really, working outside, it's not hard to avoid the dust.  Pour some in, stand back, wait a few seconds for the dust to clear.  That's all...

Mix the concrete and water to make a slurry, a lot like oatmeal or applesauce. 

The bag's directions tell you how much water to use for the entire bag (almost always less than one gallon, so I fill an empty plastic gallon milk jug with the amount of water specified for the entire bag.  Then as I fill the mold, I can see how much of the bag I have used, and add the appropriate amount of water.

Generally speaking, it's better to add a little bit too much water, rather than too little.

Next: Step 6 - Fill the molds