< Topic >It improves the quality of the dry laver, it offers the dry laver manufacturing system which can lighten the maintenance job of the minchi device.SolutionsBeating it does the laver origin alga which with the laver storage device is stored in the seawater with the minchi device and mixes with the fresh water and supplies to the laver production device, it provides the fresh water feeder with the laver production device and the minchi device in the dry laver manufacturing system which produces the dry laver with laver production device, after removing solid amount from the red water which with the fresh water feeder is discharged from the laver production device it supplies the fresh water which makes ozone dissolve to the minchi device. In addition, as the raw water retention vessel because the red water which removes solid amount is stored and the fresh water depot because the fresh water which makes ozone dissolve is stored and the fresh water supply tank because the fresh water which to the minchi device is supplied is stored inside the tank block in the divider wall, it forms the fresh water feeder, communicates the raw water retention vessel and the fresh water depot at top of the divider wall, it communicates with the fresh water depot and the fresh water supply tank with lower part of the divider wall.< Choice figure >Drawing 1【課題】乾燥海苔の品質を向上させ、ミンチ装置のメンテナンス作業を軽減することができる乾燥海苔製造システムを提供する。【解決手段】海苔貯留装置で海水中に貯留した海苔原藻をミンチ装置で細断し真水と混合して海苔製造装置へ供給し、海苔製造装置で乾燥海苔を製造する乾燥海苔製造システムにおいて、海苔製造装置とミンチ装置との間に真水供給装置を設け、真水供給装置で海苔製造装置から排出された赤水から固形分を除去した後にオゾンを溶解させた真水をミンチ装置に供給する。また、真水供給装置は、固形分を除去した赤水を貯留するための原水貯留槽とオゾンを溶解させた真水を貯留するための真水貯留槽とミンチ装置へ供給する真水を貯留するための真水供給槽とを水槽の内部に仕切壁で区画して形成し、原水貯留槽と真水貯留槽とを仕切壁の上部で連通するとともに、真水貯留槽と真水供給槽とを仕切壁の下部で連通する。【選択図】図1