> The plans filed with the building dept. call for 4000 PSI. The 5000
> rating is just insurance. I figured if it takes longer than I had
> hoped to pump the concrete 300 feet into 4 different holes, I won't
> be compromising strength if I have to add a little water to add
> workability time. All I need is to clog up a $100,000 concrete
Sounds like you are acting as your own prime contractor--also known as
the guy who is responsible for EVERYTHING. Did you consider hiring an
outside prime to do the pour for you? It might cost a little more but
it should keep the liability off of you.
Just a thought.
73 Malcolm KR4HP
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