Andy's Tire Service

"Our service goes a long way!"

Ballast Volume and Weight

Volume and weight are calculated with the valve at its highest position and liquid filled to that level. This will be approximately 75%. The 3 pound calcium chloride per gallon of water solution is slush-free to -12F and solid at -52F. 5 lb/gal solution is slush-free to -53F and solid at -63F.

Considerable heat is generated when mixing CaCl2 and water. Always add the CaCl2 to the water rather than water to the CaCl2.

 

Tire Size

 

Water

3 lb/gal CaCl2

5 lb/gal CaCl2

 

Gallons

Pounds

Pounds

Pounds

4.00-12
4.00-15
4.00-19

2
2.5
3

17
21
25

24
24
30

27
27
34

5.00-15

4

33

35

40

5.50-16

5

42

47

53

5.90-15

5

42

47

53

6.00-14
6.00-16

6
6

50
50

60
60

67
67

6.50-16

7

58

71

74

7.5L-15
7.50-16
7.50-18
7.50-20

8.5
10
11
12

71
83
92
100

82
101
112
118

93
107
120
127

9.5L-15
9.50-20
9.50-24

11
18
20

92
150
167

112
189
202

120
200
213

10.00-16

18

150

189

200

11L-15
11L-16
11.00-16

14
15
25

117
123
208

142
155
260

147
160
267

12.5L-15

19

158

189

200

13.50-16.1

35

292

355

387

14L-16.1

28

233

284

307

16.5L-16.1

41

342

414

440

19L-16.1

55

459

556

600

21.5L-16.1

68

567

687

734

7.2-30

11

92

112

120

8.3-24

13

108

131

133

9.5-16

12

100

118

133

9.5-24

17

142

178

187

9.5-36

24

200

249

267

9.5-42

28

233

284

307

11.2-24

24

200

237

253

11.2-28

27

225

284

293

11.2-34

32

267

331

347

11.2-36

24

283

344

360

11.2-38

35

292

355

387

12.4-16

21

175

213

227

12.4-24

30

250

308

333

12.4-28

35

292

355

374

12.4-36

42

350

426

453

12.4-42

48

400

486

520

13.6-16.1

31

258

308

333

13.6-24

38

317

379

400

13.6-28

43

359

439

467

13.6-38

57

475

581

614

13.9-36

51

425

521

560

14.9-24

47

392

474

507

14.9-26

48

400

486

520

14.9-28

53

442

545

574

14.9-30

57

475

568

614

14.9-38

67

559

675

720

15.5-38

66

550

663

707

16.9-24

61

509

616

654

16.9-26

65

542

663

694

16.9-28

69

575

699

747

16.9-30

73

609

746

787

16.9-34

82

684

829

880

16.9-38

90

751

912

974

17.5L-24

55

459

557

600

18.4-16.1

49

409

497

520

18.4-24

74

617

758

800

18.4-26

79

659

805

854

18.4-28

84

701

852

907

18.4-30

89

742

912

960

18.4-34

100

834

1007

1081

18.4-38

110

917

1113

1187

18.4-42

115

959

1160

1240

19.5L-24

69

575

710

747

20.8-34

128

1068

1291

1374

20.8-38

140

1168

1420

1521

20.8-42

148

1234

1503

1600

21L-24

87

725

876

934

23.1-26

128

1068

1291

1374

23.1-30

143

1193

1456

1547

23.1-34

159

1326

1610

1708

24.5-32

170

1418

1729

1841

28L-26

157

1309

1587

1694

30.5L-32

217

1809

2202

2347

35.5L-32

313

2609

3172

3388