Overgrow.com
How do I work out the surface area of one end of a 4-inch storm water pipe I am going to use as my filter housing?
Advanced Techniques
GrowFAQ
GrowFAQ
August 10, 2016, 12:24pm
1
Use the formula pi x radius squared. (3.14 x (2"x2")) = 12.56 square inches for a 4" pipe
Related Topics
Topic
Replies
Views
Activity
How do I determine the number of gallons my container holds?
GrowFAQ
0
548
August 10, 2016
How small can I make a slow sand/rockwool filter?
GrowFAQ
0
398
August 10, 2016
How do I construct a slow sand/rockwool filter?
GrowFAQ
0
532
August 10, 2016
What kind of airstone should I use?
GrowFAQ
0
317
August 10, 2016
What size pots should I use?
GrowFAQ
0
827
August 10, 2016
Diy water level indicator for buckets?
Hydroponics
20
761
May 13, 2024
Drip ? - Rockwool Cube sizes for microgrow
Hydroponics
4
437
October 16, 2020