Product Manual
Page 6
Copyright Turf-Tec International - www.turf-tec.com
1471 Capital Circle NW #13, Tallahassee, FL. 32303 - USA
Turf-Tec 6 and 12 inch Infiltration Rings
Operating Instructions
1. You will need a stop watch; ruler and water supply before testing can begin. (A IN6-W
Driving plate and bottle jack or board and dead blow hammer should be used in hard
soils.) Also a Moisture Sensor and a Penetrometer reading should be taken if you are
comparing infiltration rates over a period of time.
2. Before checking infiltration rate, check the soil moisture at the one, two, three and four
inch levels and record on the monitoring chart. Also a Penetrometer reading should be
taken and recorded to determine the percentage of compaction at each test location.
3. Place the double ring cutting blades on the area to be tested. (Silicone spray may be
applied to the cutter edges to allow easier and cleaner removal of tool.)
4. Push down on handle while slightly turning instrument back and forth until the rings are
approximately two inches into the soil. (Do not move the instrument side to side or
twist too much because the soil will be disturbed. Also on turf areas excessive
twisting can cause the grass roots to shear.)
5. If harder soils are being tested, you can use the IN6-W Infiltration Test Ring Driving
Plate or a board and dead blow hammer to insert the rings into the soil. Be sure to use
care as to not damage or bend the rings with excessive force.
6. If you are using the IN6-W Infiltration Test Ring Driving Plate, a pickup truck bumper
can be placed over the ring with the driving plate and a bottle jack can be used to apply
downward pressure on the plate and rings insuring an even insertion into the soil.
7. Once inserted to a depth of two inches deep, fill both the outer and inner ring with clean
water until they slightly overflow. (This is accomplished easiest by filling the inner ring
first and allowing it to spill over and fill the outer ring.)
8. Insert the ruler into the center ring until the top of the ruler is at the top of the water
column. (The ruler may have to be cut down shorter and then inserted into the soil
until the top of the ruler is just below the water level.)
9. When the water level has reached the top of the ruler in the inner ring, start the timer
immediately.
10. After fifteen minutes, note the amount of water in the center ring on the ruler. Record
this number on the monitoring record.
11. Multiply the inches that have infiltrated into the soil by 4 to give you the infiltration rate
in one hour. Also record this information on the monitoring chart.
12. To remove the instrument from the soil, use the hand grips to lift the instrument straight
out of the soil. The handles may also require a slight turning while lifting the tool out of
the ground. Extract the tool slowly in order not to disturb the soil surface.
13. It is best to get several readings on an area to get the average infiltration rate.
14. If the infiltration rate is slow, a one hour test may be desired. If the Infiltration rate is
fast (as with new sand construction), a five minute test may be sufficient.
15. After using your Turf-Tec Infiltration rings, wash the rings, dry them and spray with
silicone spray. (This will help the infiltration rings to remove a clean plug.)
To see more tips on infiltration, visit our website at WWW.TURF-TEC.COM