DP800 Injection Pump

Knowing when to use this pump is important to the performance of this machine. As with all Geoprobe® tools and equipment, it's important to remember Team Geoprobe is ready to answer any question you may have about tool/machine usage.

What is this pump used for?
The DP800 was designed to pump chemicals that are injected in high volumes where low volume/high pressure pumps are not well suited. At 8 gpm, the DP800 can pump most chemicals 2-3 times faster than the Geoprobe® GS Series machines. With acids, the need for a high volume/medium pressure pump is evident. The DP800 fits this need.

What should I NOT pump with this machine?
ORC®, Bentonite Grout, HRC®, Cement, or any material that has ability to set up in a hardened state when dehydrated or dried. Materials such as HRC® or molasses should not be pumped due to their high viscosity, nor should ORC® and cement-based grouts due to their tendancy to harden inside the pump.

How do I deliver material to the pump?
While the DP800 is self-priming, an elevated, gravity-fed supply is recommended to prevent pump cavitation. Situate the DP800 close to the supply source … within 3 feet is ideal. The pump is supplied with a 1.0 in. PVC supply hose assembly.

How does the pump operate?
The pump is driven by a 9HP Honda engine with 2:1 gear reduction and centrifugal clutch. The pump will operate at most engine speeds.

How much time is required for cleanup?
Cleanup is fairly straightforward. After pumping is complete, simply allow clean water to run through the pump at high speed for several minutes. This flushes any residual chemicals or materials out of the pump.

DP800 Injection Pump Benefits...

Mobile... compact

Few replaceable parts

High volume ... 8 gpm

Outlet pressure... 650 psi

Operates independently of probe machine

Use without vehicle nearby

Optional suction hose designed to withstand harsh oxidants

Optional outlet hose is Teflon® lined with stainless steel jacket to withstand oxidants

Capable of "bottom up" or "top down" injections

Self-priming pump

Internal components of pump resistant to harsh oxidants, such as permanganates

All mechanical operation -- no electronics on boar

Inject materials laterally into the subsurface with either top-down or bottom-up injection.

Suction/Supply Hose Assembly (left)
Outlet Hose Assembly - Teflon® with stainless steel jacket (right)

(ORC® and HRC® are registered trademarks of Regenesis Bioremediation Products, San Clemente, CA.)