- Any cracked, sharp stone pieces occurred in the open pit while forming “water receptacles” may penetrate into our breathing receptacle due to hydraulic forces. Precautions should be taken for this after drilling of pit before building up the receptacle.
- Water resistant material to be used to build up receptacle should be environment-friendly. Materials which would be absorbed by our plant should be avoided. For example, building up a receptacle by the use of asphalt, plant will absorb this.
- Especially nylons available in the market quite wide should not be used, because this is one of the favourite materials of rodents. "Water Receptacles” should be built-up at deeper points where moles, rabbits and mice cannot easily reach.
- "Water Receptacles” have long life cycle and do not require maintenance and repair. Therefore, alkali matters in the soil may dissolve by water and flow into water receptacle. It is possible to eliminate alkali matters and toxics within a period of 130 – 200 years. For this, it will be enough to add low level ash into sand of our receptacle.