Plan drilling fluid requirements – Ditch Witch FT5 User Manual
Page 20
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FT5 - SETUP
PLAN DRILLING FLUID REQUIREMENTS
Mixtures
Bentonite does not mix well in water containing polymer. To use
both, mix bentonite first, then add polymer.
Bore-Gel contains premixed bentonite, polymer, and soda ash.
Use 15 lb/100 gal (6.8 kg/378.5 L) in normal boring conditions
and up to 45 lb/100 gal (20.4 kg/378.5 L) in sand or gravel.
PLAN DRILLING FLUID REQUIREMENTS
1.
Determine boring conditions and choose appropriate drilling
fluid mix.
2.
Estimate amounts of supplies needed and check availability:
•
drilling fluid
•
water supply. If more water than can be carried with the
unit will be needed, arrange to transport additional water.
•
bentonite and/or polymer
3.
Check water quality.
•
Using litmus paper, perform a pH test on water.
•
If pH is below 5.0, add 1 cup (.25 L) soda ash per tank.
•
Test and repeat until pH is between 7.5 and 10.