The Rigid WD19560 Shop Vacuum meets the Holey-Moley Digger Vacuum Requirements for optimum post hole digging. This vacuum rated at 6.5 HP pulls 203 CFM with a 2-1/2″ hose. In addition, the vacuum should have two sturdy wheels on an axle.
Note: A 6 inch diameter post hole will generate approximately 15 pounds of soil per foot of depth. The volume of the removed soil will be approximately 2 gallons. A 6-inch diameter hole, 3 feet deep, will generate 6 gallons of soil weighing approximately 45 pounds. Likewise two holes will generate 12 gallons of soil weighing 90 pounds.
This weight can rapidly become unmanageable. So a shop vacuum with larger wheels on an axle and a steel tube of around 16 gallons will still have head room around the filter after digging two holes. The sturdy handle and wheels allow for easy movement of the dirt.
In addition, the two wheels and larger tube make for easier dumping of the dirt out of the shop vacuum.
Rigid WD19560 Shop Vacuum Specifications
It has been our experience that the Rigid Shop Vacuum WD19560 fits the bill as a near ideal vacuum for digging holes and working with the Holey-Moley Diggers. It comes with 7 feet of 2-1/2″ hose, pulls 204 CFM and carries the 6.5 HP rating. This vacuum has two large wheels and a sturdy detachable handle. This vacuum is easy to break down and transport in a car.
The standard 2-1/2 inch hose that comes with the vacuum has 2-1/2″ Hose Cuff (2″ ID) that fit over the 2 inch suction tube of the Holey-Moley Digger with a slip fit and works very well.
Cat 6 Tools now provides 8 feet of Low Loss Vacuum Hose with custom made hard hose cuffs that are made for the digger. These provide a tight slip fit for best suction but still allows the hose to rotate.
We have dug holes 20 feet deep using this vacuum (out of the box) with the Holey-Moley Digger.
See the Rigid WD19560 Specifications for more information.
Is Your Electrical Outlet Too Far From Your Post Hole Location?
Cat 6 Tools now carries portable engine driven vacuums. One, our Makita Gasoline Powered Vacuum Filter Bucket shown below, has a tangential side inlet making it very efficient and it includes a filter holder that uses standard Ridgid Shop Vacuum Filters.
In addition, Cat 6 Tools fabricates our own 8 and 16 vacuum drums. See our Makita Gasoline Powered Vacuum Drum here.
For more information contact: