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Best quality vitrified clay channels, bedded in cement mortar half-section straight main channel 100mm diameter x 300mm

100mm diameter x 600mm

100mm diameter x 1000mm

150mm diameter x 300mm

150mm diameter x 600mm

150mm diameter x 1000mm

Half-section 90 degrees channel bend

Three-quarter section 90° channel bend nr 0.75 11.25

nr 0.95 14.25

  1. 27 2.18 16.70
  2. 84 2.79 21.38
  3. 47 3.26 24.98
  4. 02 2.44 18.71
  5. 42 3.03 23.20
  6. 28 3.68 28.21

Land drainage

Excavate trench 225mm wide by hand, remove excavated material, average depth

500mm

m

0.35

5.25

0.00

0.79

6.04

750mm

m

0.50

7.50

0.00

1.13

8.63

1000mm

m

0.75

11.25

0.00

1.69

12.94

Excavate trench 300mm wide by hand, remove excavated material, average depth

500mm

m

0.45

6.75

0.00

1.01

7.76

750mm

m

0.70

10.50

0.00

1.58

12.08

1000mm

m

0.90

13.50

0.00

2.03

15.53

Agricultural clay field drain pipe, 300mm long, laid butt jointed in trench, diameter

75mm

m

0.11

1.65

2.99

0.70

5.34

100mm

m

0.12

1.80

5.02

1.02

7.84

150mm

m

0.14

2.10

9.57

1.75

75mm

nr

0.06

0.90

10.53

1.71

13.14

100mm

nr

0.07

1.05

13.69

2.21

16.95

150mm

nr

0.08

1.20

16.88

2.71

20.79

Flexible plastic perforated field drain pipe, diameter

60mm 80mm 100mm

Single junction

60 x 60mm 60 x 80mm 60 x 100mm 80 x 80mm 80 x 100mm

Backfilling field trench with gravel, blinded with sand and replace with turf laid aside trench width 225mm depth 500mm depth 750mm depth 1000mm trench width 300mm depth 500mm depth 750mm depth 1000mm

m

0.02

0.30

m

0.02

0.30

m

0.03

0.45

nr

0.06

0.90

nr

0.06

0.90

nr

0.06

0.90

nr

0.06

0.90

nr

0.06

0.90

m

0.03

0.45

m

0.03

0.45

m

0.03

0.45

m

0.03

0.45

m

0.03

0.45

m

0.03

0.45

0 0

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