Equipment needed
1. Plastic roof greenhouses Greenhouse thickness 1.5 mm
(width 3 meters long, 100 meters UV 7%)
2. Thermometer frame
three. Nails
4. air pump, power pump, 420 L / min, the power light 500 w, pressure 0.055 Mpa
5. Hose (blue PVC pipe 1/2)
6. hose to pump the sand valve. This three-way