Some type of flow meter?

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StikHedRon

StikHedRon

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Does anyone know of or have something that that will measure how many gallons go through a pipe? I am wanting to create a water change station and one of these would be nice on my drain line out of my sump so I can measure precisely 20 gallons or whatever volume I want to change. No more guess work or filling 5 gallon buckets till I get the desired amount. Any help would be greatly appreciated.
 
Tidal Gardens
You looking for something like this?
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"
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="align: center"][/TD]
[TD="align: center"][/TD]
[TD="align: center"][/TD]
[TD="bgcolor: #80FF80, colspan: 2, align: center"][SIZE=-1]Assume Gravity to Low Pressure. About 6f/s flow velocity, also suction side of pump[/SIZE][/TD]
[TD="bgcolor: #FFFF00, colspan: 2, align: center"][SIZE=-1]Assume Average Pressure. (20-100PSI) About 12f/s flow velocity[/SIZE][/TD]
[TD="bgcolor: #FF4343, colspan: 2, align: center"][SIZE=-1]Assume "High Pressure" PEAK flow. 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]

 
Sick looking copy and paste. I love when that happens haha.

What if you did something like a liter meter?

My water change goes like this:
Pre mix my saltwater in the tote plumbed above the sump with a valve to keep it full.
When the water is ready I have another tote marked where the exact level is of equal volume to drain exactly the same amount every time.
First I drain the tank
Next I open the new water valve and it fills the sump with the exact amount I removed every time.
All gravity aside from the mixin pump
 
Avast
will a liter meter work under low water pressure? what your saying seymore would work but then you would have to drain your waste barrel and have room for a waste barrel, i'm trying to think of a way to minimize the steps. measure what goes out and measure what goes in without shutting the system down.
 
On my water changes, I have it down to how many inches are left in my Sump.
 
I thought about using a really long siphon hose routed outside that was situated to break when the water was drained at the right level..

Maybe you could use a rain barrel with a really long drain hose and fill that up to the desired gallons and then open the valve to drain it?

I'm actually not completely sure of the liter meter specifics, but a ton of people use them in water change systems...


I also thought about making an overflow in my sump so I never had to worry about taking water out...just pour in the new and the old can drain out to where ever. Outside most likely. I have tons of space...lol
 
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