Pressure pumps?

[jagermaier]

When I was running a Beckett skimmer I used an Iwaki pump. They are excellent high pressure pumps. Here's a link http://www.jlaquatics.com/product/wp...ater+Pump.html
If your looking for an in sump type you might have to go with a Red Dragon $$$

[MarkoD]

Originally Posted by jagermaier

When I was running a Beckett skimmer I used an Iwaki pump. They are excellent high pressure pumps. Here's a link http://www.jlaquatics.com/product/wp...ater+Pump.html
If your looking for an in sump type you might have to go with a Red Dragon $$$

Lol don't even get me started in red dragon! But thanks for the suggestion

[Skimmerking]

Originally Posted by MarkoD

Lol don't even get me started in red dragon! But thanks for the suggestion

yes please done get him going

[MarkoD]

ok here are the pictures.

Pump is at the far end of the sump. inlet is 1.5" and outlet is 1.5" but i reduced it to 1" for 1" vinyl tubing.



Tubing runs under the tank and into a Y where it splits into two 1" hoses



the vinyl hose is connected to a PVC 90 and then goes into the becketts. The 2 smaller hoses are the outputs from the pump forcing air in




water and air mixture travels down the "twisted" tube and then the mixture is ejected into the skimmer body




and this is how much SCFM i get with the air pump running.
Without the air pump (just sucking from beckett) this reads 0

[sphelps]

No air pump - gauge read zero
Air pump added - gauge read 25 or whatever.

hmmm... Question:

Why even use the Beckett?

I'm guessing removing it would increase your flow substantially and while that might not be desirable as airflow wouldn't increase it would allow for a smaller pump to be used.

Oh and PS flow from that pump will be quite limited by the 1" vinyl line.

[MarkoD]

sorry that was a typo. without the air pump it reads 10

i was told that using a 1" tubing will give me greater pressure than if i had used 1.5"

[sphelps]

Originally Posted by MarkoD

sorry that was a typo. without the air pump it reads 10

i was told that using a 1" tubing will give me greater pressure than if i had used 1.5"

LOL ok I thought I fixed all your problems. But i'd still be curious to know what the airflow is like just from the pump itself. I think the pump will put out the same amount no matter what so the two things aren't necessarily working together.

Pressure is not a good thing from your piping. Smaller diameter pipe adds pressure to the pump head meaning less flow. The more flow you put through that Beckett thingy the higher velocity though the restriction will be meaning a higher outwards pressure drop at the airline ultimately meaning more air will get sucked in. You don't want to restrict your flow before you even get it to the Beckett. Its really all about velocity through the Beckett, pressure rated pumps will do that better but decreasing pipe size prior to increase head pressure makes zero sense.

[Skimmerking]

Originally Posted by sphelps

Pressure is not a good thing from your piping. Smaller diameter pipe adds pressure to the pump head meaning less flow. The more flow you put through that Beckett thingy the higher velocity though the restriction will be meaning a higher outwards pressure drop at the airline ultimately meaning more air will get sucked in. You don't want to restrict your flow before you even get it to the Beckett. Its really all about velocity through the Beckett, pressure rated pumps will do that better but decreasing pipe size prior to increase head pressure makes zero sense.

Agree with Steve Mark. the pressure allows the water to still push. at any head. That is why a pressure pump is recommended as for the becketts dude. that doesn't make sense you should still get huge bubbles with the dual becket. its not about the amount of air its about how many bubbles the beckets creates which gives you huge contact time. I have always had the best foam with any beckett skimmer.

Just curious thou when you look at the becket valve that is the black piece that that water goes through. I cant remember the name. just make sure that its not backwards. that beckett should be having a loud hissing sound from the air being sucked into that valve inlet.

[MarkoD]

Originally Posted by sphelps

LOL ok I thought I fixed all your problems. But i'd still be curious to know what the airflow is like just from the pump itself. I think the pump will put out the same amount no matter what so the two things aren't necessarily working together.

Pressure is not a good thing from your piping. Smaller diameter pipe adds pressure to the pump head meaning less flow. The more flow you put through that Beckett thingy the higher velocity though the restriction will be meaning a higher outwards pressure drop at the airline ultimately meaning more air will get sucked in. You don't want to restrict your flow before you even get it to the Beckett. Its really all about velocity through the Beckett, pressure rated pumps will do that better but decreasing pipe size prior to increase head pressure makes zero sense.

do you mean what the air draw is from the beckett with just the water traveling through it or what the air pump is putting out without it connected to the skimmer?

and in regards to increasing the volume through the beckett, should i run a 1.5" pipe from the pump to the splitter and then split it to the two 1" pipes? the skimmer inlet is 1"