how much drain can a 1" schedule 20 handle?

joshuajoshua · Oct 5, 2014

This is the thin walled pvc pipe. I have dual "MEGAFLOWS" just trying to see how much I can upgrade my pump.

_Alex_ · Oct 5, 2014

Believe full wide open siphon is 1000gph but I could be wrong. Use to be a sticky under plumbing forum that had it all

Reefing Madness · Oct 5, 2014



1/2"	.50-.60"	.85"
3/4"	.75-.85"	1.06"
1"	1.00-1.03"	1.33"
1.25"	1.25-1.36"	1.67"
1.5"	1.50-1.60"	1.90"
2"	1.95-2.05"	2.38"
2.5"	2.35-2.45"	2.89"
3"	2.90-3.05"	3.50"
4"	3.85-3.95"	4.50"
5"	4.95-5.05"	5.563"
6"	5.85-5.95"	6.61"
8"	7.96"	8.625"

[TD="bgcolor: #FF4343, colspan: 2, align: center"][SIZE=-1]ow. About 18f/s flow velocity ^* [/SIZE]
[/TD]

[TD="align: center"]Sch 40 Pipe Size[/TD]
[TD="align: center"]ID
(range)[/TD]
[TD="align: center"]OD[/TD]
[TD="bgcolor: #80FF80, align: center"] GPM [SIZE=-2]
(with minimal pressure loss & noise)[/SIZE][/TD]
[TD="bgcolor: #80FF80, align: center"] GPH [SIZE=-2]
(with minimal pressure loss & noise)[/SIZE][/TD]
[TD="bgcolor: #FFFF00, align: center"] GPM [SIZE=-2]
(with minimal pressure loss & noise)[/SIZE][/TD]
[TD="bgcolor: #FFFF00, align: center"] GPH [SIZE=-2]
(with minimal pressure loss & noise)[/SIZE][/TD]
[TD="bgcolor: #FF4343, align: center"] GPM [SIZE=-2]
(with significant pressure loss & noise)[/SIZE][/TD]
[TD="bgcolor: #FF4343, align: center"] GPH [SIZE=-2]
(with significant pressure loss & noise)[/SIZE][/TD]

[TD="bgcolor: #80FF80"]7 gpm[/TD]
[TD="bgcolor: #80FF80"]420 gph[/TD]
[TD="bgcolor: #FFFF00"]14 gpm[/TD]
[TD="bgcolor: #FFFF00"]840 gph[/TD]
[TD="bgcolor: #FF4343"]21 gpm[/TD]
[TD="bgcolor: #FF4343"]1,260 gph[/TD]

[TD="bgcolor: #80FF80"]11 gpm[/TD]
[TD="bgcolor: #80FF80"]660 gph[/TD]
[TD="bgcolor: #FFFF00"]23 gpm[/TD]
[TD="bgcolor: #FFFF00"]1,410 gph[/TD]
[TD="bgcolor: #FF4343"]36 gpm[/TD]
[TD="bgcolor: #FF4343"]2,160 gph[/TD]

[TD="bgcolor: #80FF80"]16 gpm[/TD]
[TD="bgcolor: #80FF80"]960 gph[/TD]
[TD="bgcolor: #FFFF00"]37 gpm[/TD]
[TD="bgcolor: #FFFF00"]2,220 gph[/TD]
[TD="bgcolor: #FF4343"]58 gpm[/TD]
[TD="bgcolor: #FF4343"]3,510 gph[/TD]

[TD="bgcolor: #80FF80"]25 gpm[/TD]
[TD="bgcolor: #80FF80"]1,500 gph[/TD]
[TD="bgcolor: #FFFF00"]62 gpm[/TD]
[TD="bgcolor: #FFFF00"]3,750 gph[/TD]
[TD="bgcolor: #FF4343"]100 gpm[/TD]
[TD="bgcolor: #FF4343"]5,940 gph[/TD]

[TD="bgcolor: #80FF80"]35 gpm[/TD]
[TD="bgcolor: #80FF80"]2100 gph[/TD]
[TD="bgcolor: #FFFF00"]81 gpm[/TD]
[TD="bgcolor: #FFFF00"]4,830 gph[/TD]
[TD="bgcolor: #FF4343"]126 gpm[/TD]
[TD="bgcolor: #FF4343"]7,560 gph[/TD]

[TD="bgcolor: #80FF80"]55 gpm[/TD]
[TD="bgcolor: #80FF80"]3300 gph[/TD]
[TD="bgcolor: #FFFF00"]127 gpm[/TD]
[TD="bgcolor: #FFFF00"]7,650 gph[/TD]
[TD="bgcolor: #FF4343"]200 gpm[/TD]
[TD="bgcolor: #FF4343"]12,000 gph[/TD]

[TD="bgcolor: #80FF80"]80 gpm[/TD]
[TD="bgcolor: #80FF80"]4800 gph[/TD]
[TD="bgcolor: #FFFF00"]190 gpm[/TD]
[TD="bgcolor: #FFFF00"]11,400 gph[/TD]
[TD="bgcolor: #FF4343"]300 gpm[/TD]
[TD="bgcolor: #FF4343"]17,550 gph[/TD]

[TD="bgcolor: #80FF80"]140 gpm[/TD]
[TD="bgcolor: #80FF80"]8400 gph[/TD]
[TD="bgcolor: #FFFF00"]273 gpm[/TD]
[TD="bgcolor: #FFFF00"]16,350 gph[/TD]
[TD="bgcolor: #FF4343"]425 gpm[/TD]
[TD="bgcolor: #FF4343"]25,650 gph[/TD]

[TD="bgcolor: #80FF80"]240 gpm[/TD]
[TD="bgcolor: #80FF80"]14,400 gph[/TD]
[TD="bgcolor: #FFFF00"]480 gpm[/TD]
[TD="bgcolor: #FFFF00"]28,800 gph[/TD]
[TD="bgcolor: #FF4343"]700 gpm[/TD]
[TD="bgcolor: #FF4343"]42,000 gph[/TD]

[TD="bgcolor: #80FF80"]380 gpm[/TD]
[TD="bgcolor: #80FF80"]22,800 gph[/TD]
[TD="bgcolor: #FFFF00"]750 gpm[/TD]
[TD="bgcolor: #FFFF00"]45,000 gph[/TD]
[TD="bgcolor: #FF4343"]1100 gpm[/TD]
[TD="bgcolor: #FF4343"]66,000 gph[/TD]

[TD="bgcolor: #80FF80"]550 gpm[/TD]
[TD="bgcolor: #80FF80"]33,000 gph[/TD]
[TD="bgcolor: #FFFF00"]1100 gpm[/TD]
[TD="bgcolor: #FFFF00"]66,000 gph[/TD]
[TD="bgcolor: #FF4343"]1700 gpm[/TD]
[TD="bgcolor: #FF4343"]102,000 gph[/TD]

[TD="bgcolor: #80FF80"]950 gpm[/TD]
[TD="bgcolor: #80FF80"]57,000 gph[/TD]
[TD="bgcolor: #FFFF00"]1900 gpm[/TD]
[TD="bgcolor: #FFFF00"]114,000 gph[/TD]
[TD="bgcolor: #FF4343"]2800 gpm[/TD]
[TD="bgcolor: #FF4343"]168,000 gph[/TD]

GPM/GPH Flow based on PVC Pipe Size, ie, How much water can flow through Sch 40 Pvc Pipe Size 1/2" 3/4" 1" 1.5" 2" 2.5" 3" 4" 6"