[herman]

The flap just guides the the water into the output smoother. When the water flows smoothly and faster the venturi in turn will suck more air.

[jackson6745]

Well, when I put it back together running the pumps in a 10" water height the air flow was reduced to 8lpm.....still better than 5lpm though.

[herman]

Rich, the design of the BX calls for the water level to be no higher than the bayonet fitting. And close the air taps just slightly. If the water level s too high it collapses the foam due to the excessive swiling action in the skimmer neck.

Adjust the water level and leave the taps open for the beginning
Then either lower the water level a tad or the air.

I had my BX running 1/2" below the bayonet fitting and the airtaps at 1 oclock. It cot me that nice capuccino froth. Otherwise you get those giant bubbles in the pic you posted

[alrha]

i'm running a Deltec Turbo 1060S.

The water level should always be below the bayonet? (i thought it can be raised up the neck to get more skimmate) also how do you know how much below the bayonet you are? it's black acrylic (not transparent).

Lastly, why would i not want to always run the three air valves fully open? doesnt more air allow for more organics to be removed?

so logic would say to max out the air, and max out the water level height to get the most aggressive skim.
something tells me experience might prove otherwise.

Quote: Originally Posted by regal Someone is having fun with my new skimmer and accessories. LINK

LMAO ,,,how much do they chagre for live shipping

[herman]

Quote: Originally Posted by alrha i'm running a Deltec Turbo 1060S. The water level should always be below the bayonet? (i thought it can be raised up the neck to get more skimmate) also how do you know how much below the bayonet you are? it's black acrylic (not transparent). Lastly, why would i not want to always run the three air valves fully open? doesnt more air allow for more organics to be removed? so logic would say to max out the air, and max out the water level height to get the most aggressive skim. something tells me experience might prove otherwise.

When you remove the cup you can see exactly where the water level is. There is a "sweet spot" for all pumps. If you close the airtaps all the way the pumps kick into high gear (more water Pressure) and as you open the taps the venturis start to suck the air. There is a point where the venturi will simply suck to much air and the pressure starts to reduce thus making the pump slightly more inefficient. Find that sweet spot regardless of water level. Then to adjust wet vs dry move he weir plate up or down. It worked quite well in my case. There is a reason why most people on the deltec forum recomment the 1 oclock setting.

Your logic is correct Albert but you have to take the pump efficiency into consideration. That is the reason why the newer model skimmers upgraded their pumps to the Eheim 1260. It allows more air while maintaining the pressure.

[alrha]

Quote: Originally Posted by herman When you remove the cup you can see exactly where the water level is. There is a "sweet spot" for all pumps. If you close the airtaps all the way the pumps kick into high gear (more water Pressure) and as you open the taps the venturis start to suck the air. There is a point where the venturi will simply suck to much air and the pressure starts to reduce thus making the pump slightly more inefficient. Find that sweet spot regardless of water level. Then to adjust wet vs dry move he weir plate up or down. It worked quite well in my case. There is a reason why most people on the deltec forum recomment the 1 oclock setting.

i knew there was a reason, that's what i figured.
i know everyone always reccommends the 1 or 2 o'clock setting, just didnt understand why (there are also those that suggest leaving it wide open).

why is the pressure from the pump needed? i dont mind less flow through the skimmer if it is mixed with more air for more effecient skimming.

how do i know when i hit the "sweet spot"? (all the valves, i assume, should be at the same setting, has anyone every tried leaving some valves open more/less than the others?)

when i remove the cup, all i see is foam, so i cant tell where the water level is. if i close the valves the water level will just overflow over the bayonet due to the increased pressure.

[herman]

To see the waterlevel just close the airtaps all the way. Then youll be able to see. Once that is done start with the taps wide open and just wait for a bit until the foam develops. Make any needed adjustments from there. Either raise the water level a bit if the foam does not reach the top or close the taps a bit if too much reaches the top.

[alrha]

Quote: Originally Posted by herman To see the waterlevel just close the airtaps all the way. Then youll be able to see. Once that is done start with the taps wide open and just wait for a bit until the foam develops.

if the water level is at the bayonet with the air closed, once i open it up all the way, the water level will be WAY lower (perhaps in the main chamber).

Quote: Originally Posted by herman Make any needed adjustments from there. Either raise the water level a bit if the foam does not reach the top or close the taps a bit if too much reaches the top.

now we're back to the original question: is it better to raise/lower the water level to adjust (with the taps fully open) or leave the level and adjust the taps. Keep in mind that closing the taps raises the water level.

[herman]

That all depends whether you like to wet skim or create nasty dry sludge.