RANCANG BANGUN DOUBLE RING INFILTROMETER UNTUK PENGUKURAN PENAMBAHAN KETINGGIAN CAMPURAN SABUT KELAPA DAN PASIR

Infiltrometer technology is a water catchment system that can measure the water level in a certain area to determine the maximum water absorption rate in order to prevent natural disasters caused by a lack of catchment areas. The purpose of this study was to determine the design of the double ring infiltrometer for measuring the effect of increasing the height of coco and sand, the stages in the double ring infiltrometer fabrication process the effect of increasing the height of coco and sand, and the validation results on the process of measuring the rate of infiltrometer. The fabrication method used is the rolling process and the welding process. The material used in this study is stainless steel grade 304 (SS 304). The measurement results show that with the addition of the height of the coco and sand there is a slowdown due to infiltration of the coco and compaction of the sand. The initial infiltration rate showed an average yield of 0.008 mm/s. Based on data on changes in infiltration rates, it can also be concluded that the use of coconut coir and sand does not show a significant
difference. The constant infiltration rate shows an average result of 0.008, a constant slowing of the infiltration rate which is quite large from the start, but with the addition
of height the infiltration rate gets smaller because coconut coir tends to be dense while sand has high compaction stability. So the use of coconut coir and sand in large
quantities is quite good, because it causes water absorption to be more perpendicular to the soil. It can be said that mixing coconut coir and sand is much better because
each has its own advantages.

Keywords: Infiltrometer, fabrication, mixture of coconut coir and sand, water
infiltration rate