The answer depends on a few things. If the pad area is accessible to the truck or will they have to use an extra long feeder tube to accomplish this the cost just for the truck can be $500 additional. The normal charge in SE US varies from $3 to $5 per square foot, providing it is easily accessible. The cost should be between $700 and $1100 as a ballpark number.
how many bags of cement for a pad 4x7x4 inches thick
I think you meant concrete pad not cement. A 6 in pad should work for you.
A 9'x12'x5" pad requires 1.67 cubic yards.
You would need 1.72 yards of cement. Add 5% for error (adjusted to 1.81)...so order 2 yards of cement.
Yes and it is common when pad is being placed onto a cement substrate. It should be noted that when pad is glued, removing it later can be a very messy job.
You will need a minimum of 7.41 cubic yards.
1704==============================Another contributor put a finer point on it:The amount you'll need depends on how deep the pad has to be.This is a big pad. The surface area is 192 square yards. You'll need 192 cubic yards of concretefor every yard deep you pour it.That's 64 cubic yards for every foot deep.The first contributor's answer of '1704' is correct if you pour it 26feet 7.5inches deep.That could get expensive.
1.1852 cubic yards for every inch the pad is deep.
The filter, pool pump, heater and any other piece of equipment should be located upon a cement pad large enough to accommodate all required equipment. the equipment and cement pad should conform to city, county, federal etc. codes.
You can remove dried cement from an aluminum window by using a soft scrubbing pad, water, and a cleanser. Scrub in the direction of the grain. Repeat until the cement is gone. If this does not work, you can try denatured alcohol.
A 4 Inch thick, Rebar reinforced pad would work fine.OrA 4 Inch thick FiberFlow pad would work as well.
it is about $7000