Venturi tube over flow

Joined
Mar 9, 2009
Messages
100
Reaction score
0
Location
Berkeley Springs, WV near Hagerstown, MD
I had a 10" venturi tube on a 75 gallon skippy filter. For the first few months the water in came up about half way up in the tube. Then it strated to overflow from the tube. I changed to a 24" high tube and the water overflows that height. I drained the tank thinking that there was a buildup of gunk in the bottom.
 
Joined
Mar 9, 2009
Messages
100
Reaction score
0
Location
Berkeley Springs, WV near Hagerstown, MD
I had a 10" venturi tube on a 75 gallon skippy filter. For the first few months the water in came up about half way up in the tube. Then it strated to overflow from the tube. I changed to a 24" high tube and the water overflows that height. I drained the tank thinking that there was a buildup of gunk in the bottom.
 

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
what size pump are you using?....what size pipe did you use to plumb the inside of the filter? and just a "tee" pipe connector in the plumbing does not make a true venturi, but eliminates the need for a check valve
pic 1...is the way i plumbed my 55 gal drums the street tee should be installed with the curve rolling down. i used 1&1/2" pipe for the inside plumbing. hose connected to input of "tee". this will easily handle 2200 gph.
pic 2...is the stock tank also 1&1/2" piping...this foto was taken with pump running. 1200 gph running thru the "tee" and not any need for an upper pipe...performs as well with 2200 gph going thru...
pic 3... showing why its 1&1/2" piping into the "tee" not just out...i plumbed thru the side wall of stocktank.
 

Attachments

  • SANY0836.jpg
    SANY0836.jpg
    70.3 KB · Views: 342
  • 006.JPG
    006.JPG
    118.2 KB · Views: 367
  • 026.JPG
    026.JPG
    100.1 KB · Views: 318

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
what size pump are you using?....what size pipe did you use to plumb the inside of the filter? and just a "tee" pipe connector in the plumbing does not make a true venturi, but eliminates the need for a check valve
pic 1...is the way i plumbed my 55 gal drums the street tee should be installed with the curve rolling down. i used 1&1/2" pipe for the inside plumbing. hose connected to input of "tee". this will easily handle 2200 gph.
pic 2...is the stock tank also 1&1/2" piping...this foto was taken with pump running. 1200 gph running thru the "tee" and not any need for an upper pipe...performs as well with 2200 gph going thru...
pic 3... showing why its 1&1/2" piping into the "tee" not just out...i plumbed thru the side wall of stocktank.
 
Joined
Mar 9, 2009
Messages
100
Reaction score
0
Location
Berkeley Springs, WV near Hagerstown, MD
The pump is 1250 gph. The inlet is 1 in and the outlet is 1&1/2 in. As can be seen in the pictures, the water is maintained at about 2 in from the top. The drain is 2 in coming out of the bottom of the tank. There is an air pump with two feed to the bottom of the tank.
 

Attachments

  • HPIM1079.jpg
    HPIM1079.jpg
    157.8 KB · Views: 334
  • HPIM1182.jpg
    HPIM1182.jpg
    158.3 KB · Views: 337
  • HPIM1179.jpg
    HPIM1179.jpg
    160.6 KB · Views: 342
Joined
Mar 9, 2009
Messages
100
Reaction score
0
Location
Berkeley Springs, WV near Hagerstown, MD
The pump is 1250 gph. The inlet is 1 in and the outlet is 1&1/2 in. As can be seen in the pictures, the water is maintained at about 2 in from the top. The drain is 2 in coming out of the bottom of the tank. There is an air pump with two feed to the bottom of the tank.
 

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
step up your inside plumbing (down pipe and swirler assembly) to 1&1/2" and your output to 2" you'll have success.... or stay with 1" and replace the tee pipe fitting with a regular 90* elbow and use a checkvalve! either one of my setups will easily handle over 2000 gallons with an open ended tee extra benefit to 1&1/2" pipe..allows just a much flow into sump area in tank but less pressure behind it so debris settle easier.
 

koiguy1969

GIGGETY-GIGGETY!!
Joined
Dec 15, 2008
Messages
10,587
Reaction score
6,409
Location
Michigan zone 5b
step up your inside plumbing (down pipe and swirler assembly) to 1&1/2" and your output to 2" you'll have success.... or stay with 1" and replace the tee pipe fitting with a regular 90* elbow and use a checkvalve! either one of my setups will easily handle over 2000 gallons with an open ended tee extra benefit to 1&1/2" pipe..allows just a much flow into sump area in tank but less pressure behind it so debris settle easier.
 

Ask a Question

Want to reply to this thread or ask your own question?

You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.

Ask a Question

Members online

No members online now.

Forum statistics

Threads
31,539
Messages
518,604
Members
13,771
Latest member
KristaBurd

Latest Threads

Top