GPM vs Line Size
The March 809 pump is rated at 7.5 GPM. This flow requires a 1" line, correct?
I had a handy chart that listed these specs but it has been a while since I've seen it. Just trying to pull it from a memory with corrupted files...
Yea I hear you, most pump ratings are for ideal conditions. Compromise those conditions, and results vary widely!
Found my cheat sheet!
For those interested in line sizing:
1/2" = 2 GPM
3/4" = 5 GPM
1" = 10 GPM
1-1/4 = 20 GPM
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