Product Manual

Page 5
©Turf-Tec International - www.turf-tec.com
1471 Capital Circle NW #13, Tallahassee, FL. 32303 - USA
How to get the most out of the
Turf-Tec Infiltration Rings on Turfgrass areas
Areas can be tested before and after certain management practices have been used. These include
aerification, Verti-cutting, and topdressing, along with all the other practices that can change the
water infiltration rate.
Monitoring Drain fields
The Turf-Tec Infiltration Rings can be used to install drain fields. The double ring is much more
accurate than just using a single ring or an excavated cavity to test for infiltration. However, please
check with your local ordinances to see if an ASTM Infiltration test is required. If one is required, you
may need to use the Turf-Tec 12 and 24 Inch Infiltration Rings.
Environmental testing
The Turf-Tec Infiltration Rings can be used to perform various types of environmental tests. They
can be used for testing fuel tank containment areas as well as spill clean-up times. The Turf-Tec
Infiltration Rings can also be used for measuring urban runoff. They have also been successfully
used for storm water soil evaluations, forestry soil assessments, and for groundwater recharge
areas.
Monitoring test pits
When monitoring test pits, be sure you use the saturated method of testing, repeating the tests in
several areas. Furthermore, when testing in the bottom of test pits, be sure the soil has not been
disturbed by the digging equipment. This is usually accomplished by machine excavating to within
2 to 4 inches of your desired testing depth and then removing the last portion digging with a flat
shovel by hand before taking your readings. This will ensure you are taking readings on undisturbed
soils. If the soil is disturbed, you can re-tamp the area and confirm consistency in compaction with
a Penetrometer before testing infiltration.
Particular Specifications - Reason for the double ring
The Turf-Tec Infiltration Rings are equipped with a double ring. During use, both rings are filled up
with water, but only the inner ring is measured. You may notice during operation, one ring may
infiltrate much faster than the other sincedue to lateral movement of water around the cutter blade.
This action will also create a seal for the inner ring, giving a much more accurate indication of the
actual rate of infiltration.
Accuracy of testing the soil on the area in question
This tool is designed to test soil infiltration right on the area in question. It differs from lab results
because it is representative of all the conditions that naturally occur on that area. The Turf-Tec
Infiltration Rings account for the vegetative cover, soil organic matter content, soil physical
properties, compaction, soil texture, and other factors. The variables all come into consideration
when using this tool to determine infiltration.
Checking infiltration at lower depths in the soil profile
If the Infiltration rate needs to be determined at lower levels in the soil profile, a post hole digger can
be used to remove the turf, thatch and mat. The Turf-Tec Infiltration Rings can then be lowered into
the hole and the rate of infiltration can be determined at that level. Maximum depth of the Turf-Tec
Infiltration Rings is approximately two feet. If readings are needed at lower levels, a backhoe can
be used for excavation.