Blower flow is decided by the dissolved oxygen content requirements in the water, pressure is decided by the pond depth, in shrimp farm, it means the DO (ppm) content and depth of the shrimp pond. In China and Southeast Asia countries, DO should be more than 4ppm, shrimp pond DO should be detected around sunrise and sunset, if DO is lower, more blower should be operated, to better suit shrimp pond DO, blower should be properly arranged. for your 190 m of porous air pipe, 2,5 m depth, 30kpa is ok, i will send you some photos of aerotube arrangement of shrimp farm, proper aerotube arrangement can ensure shrimp harvest and optimal economic benefits, if you have time to cone to China, i will show you some shrimp farms.

I send you some vedio in the attachment, it's one of our partner in Malaysia, i went to the site last year and take the vedios, you can see the blower operation and pipe arrangement in the vedio, when i was there, our partner is on shrimp nursery, blower is operated without stop and DO content is detected periodically to ensure more than 6 ppm.

I send you a shrimp pond layout drawing for your reference in the attachment. 4 sets of blower is operated according to the shrimp pond requirement, if DO enough, one set can be switched off, and blower from pipe to the bottom of the shrimp pond for optimal dissolved oxygen.

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