CONCRETE: 5 sack or 3000 psi Concrete $ 124.00 per cubic yard. 5.5 sack or 3500 psi Concrete $ 127.00 per cubic yard. 6 sack or 4000 psi Concrete $ 130.00 per cubic yard. Additional Cement $ 6.00 per sack of cement. Type III - High early winter mix $ 3.00 per sack of cement. HOURS OF DELIVERY: 6:00 AM - 5:00 PM Included in price of concrete.
Add a sound-amplifying exhaust tip. Exhaust tips with dual walls, flared ends or large diameters may increase the sound volume of the exhaust output. Increase the size of your exhaust pipes by 1/2-inch to 1-inch in diameter.
This is likely caused by one of your fans. If one has collected dirt over time it can cause a loud humming sound when active. Try and figure out which one is causing the noise, if it's not the CPU fan, you can probably clean it yourself using a can of compressed air or a vacuum cleaner (careful with the PC components!). If it is the CPU fan, it may be best to have an expert clean or replace it.