Pressure pumps?

MarkoD · #1 07-17-2013, 10:22 PM

There is a valve on the output of the air pump.

Before I had the air pump the becketts were sucking in air. But not enough for my liking. I wanted more more more muahahahahahah

But the Beckett valve only fits one way. It's bigger on one end than the other and it has gaskets one side. So they only fit in one direction.

jagermaier · #2 07-17-2013, 10:46 PM

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 · #3 07-17-2013, 10:50 PM

Quote:

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 · #4 07-17-2013, 11:11 PM

Quote:

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 · #5 07-17-2013, 11:15 PM

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 · #6 07-17-2013, 11:45 PM

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 · #7 07-17-2013, 11:48 PM

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 · #8 07-17-2013, 11:57 PM

Quote:

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.