To solve the problem of preventing us from enjoying the advantage of deep seawater due to the comparatively high cost and scarceness of deep seawater goods although the usefulness of deep sea water such as rich nourishment, the mineral, purity, low temperature and ripeness was pointed out and it seemed like a boom at one time, but a conventional intake pipe construction work using an armored hard polyethylene pipe amounts to a huge sum of money which made it difficult to even examine private industrialization on a full scale and hindered the practical use of deep seawater and cost reduction (generalization) of high functional goods.

The construction cost difference between a conventional construction method and a simplified water intake construction method is large, which is a big factor in private industrialization. Stepped maintenance becomes effective only at a low cost based on a simplified water intake construction method. Extra water intake and throw-away are avoided to reduce environmental load, and the possibility of enterprise on a private basis arises with the considerable reduction of a water intake cost, and users can truly enjoy the benefit of the deep sea water by a home delivery system corresponding to the demand structure of the deep sea water.