JT5 Operator’s Manual Systems and Equipment - 99
Drilling Fluid
CMW
®
Drilling Fluid Requirements
1. Determine drilling conditions and choose appropriate drilling fluid mix.
2. Estimate amount 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.
• Use meter or pH test strips to test pH of water. If pH is below 9.0, add 1 lb (454 g) soda ash per
tank. Test and repeat until pH is between 9 and 10.
• Check water hardness using hardness test strips. Treat with soda ash if hardness exceeds 125
ppm.
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