JPH0711766Y2 - 重力濾過池の濾床上部水抜装置 - Google Patents

Info

Publication number

JPH0711766Y2

JPH0711766Y2 JP8815189U JP8815189U JPH0711766Y2 JP H0711766 Y2 JPH0711766 Y2 JP H0711766Y2 JP 8815189 U JP8815189 U JP 8815189U JP 8815189 U JP8815189 U JP 8815189U JP H0711766 Y2 JPH0711766 Y2 JP H0711766Y2

Authority

JP

Japan

Prior art keywords

water

drainage

filter bed

height

filter

Prior art date

1989-07-26

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired - Fee Related

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• 238000001914 filtration Methods 0.000 claims description 34
• 238000004140 cleaning Methods 0.000 claims description 22
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