I would be very interested in a comparison test with your manifold
vs
http://www.alabdiffusers.com/airlift.htm
how ever after plugging in their details your calculator pretty much nailed it anyhow so really do want too get my hands on your manifold :P
they had 63 Submerge 5 LPM lift 1 inch 33.1 lpm and said when diffuser was removed became 6.2 lpm
your manifold calculates Water Flow Produced: 31.125999999999998 GPM
how ever you gave me the idea of lowering my filtration system to get more depth so I can move more water @ 0 head
my tank's water level is 2m high and planing on siphoning into filtration system 1m below ground level then having 3m high lift tube going back into the tank just below water surface ( allowing air bubbles to do their thing to surface tension )
my goal is to move over 100klph @ 200 watts or less its a bit hard working out air supply LPM
based on depth to see if its worth while going deeper how ever
going by your calculator
120" LPM 20 0 head 84GPM
80" LPM 20 0 head 64GPM
how ever if I use a known pump air supply pressure chart
http://www.matalausa.com/pdf/hk100l-graph.pdf
actually even better their newer 200L model that's got best L / Watt and low PSI
Rated 200L @ 77 inch depth / 2.85 PSi
Inches Deep PSI Air
77.83448276 2.85 200L
58.17103448 2.13 250L
27.31034483 1 350L
97.22482759 3.56 175L
106.7834483 3.91 150L
126.1737931 4.62 100L
136.0055172 4.98 50L
forgive me not exact formula I used google to find
"For every 33 feet (10.06 meters) you go down, the pressure increases by 14.5 psi"
and created something along those lines
396 inches = 14.5 psi = 0.9997398 Bar = 0.09997398 MPa
1 inch = 0.03661616162 psi = 0.002524595455 Bar = 0.0002524595455 Mpa
12 inch = 0.4393939394 psi = 0.03029514545 Bar = 0.003029514545 Mpa
1006 cm = 14.5 psi = 0.9997398 Bar = 0.09997398 MPa
1 cm = 0.01441351889 psi = 0.0009937771372 bar = 0.00009937771372 MPa
30 cm = 0.4324055666 psi = 0.02981331412 bar = 0.002981331412 MPa
so going by your calculator again
Submerged Inches 0 head
77.83448276 200L Air 282.28373793172 GPM
58.17103448 250L Air 333.41100413656 GPM
27.31034483 350L Air 439.87324138051 GPM
97.22482759 175L Air 261.47073931223 GPM
106.7834483 150L Air 235.77137380509998 GPM
126.1737931 100L Air 184.5083751707 GPM
136.0055172 50L Air 128.4947420484 GPM
it would seem less submergence is more cost effective from air supply loss @ depth ???
Submerged Inches 4 head
77.83448276 200L Air 257.18373793172 GPM 1.428798544 gallons / watt
58.17103448 250L Air 308.31100413656 GPM 1.712838912 gallons / watt
27.31034483 350L Air 414.77324138051 GPM 2.304295785 gallons / watt
97.22482759 175L Air 236.37073931223003 GPM 1.313170774 gallons / watt
106.7834483 150L Air 210.6713738051 GPM 1.170396521 gallons / watt
126.1737931 100L Air 159.4083751707 GPM 0.8856020843 gallons / watt
136.0055172 50L Air 103.39474204840002 GPM 0.5744152336 gallons / watt
and I just had to test with the hk100l after all with 4 inch head
161.1310345 5.9 100L Air 176.7821241465 GPM 1.523983829 gallons / watt
89.57793103 3.28 110L Air 153.40023172191 GPM 1.322415791 gallons / watt
246.3393103 9.02 80L Air 194.7706372191 GPM 1.679057217 gallons / watt
291.1282759 10.6 70L Air 204.8507531223 GPM 1.765954768 gallons / watt
335.9172414 12.3 60L Air 214.9308689758 GPM 1.852852319 gallons / watt
382.8910345 14.0 40L Air 213.9168441465 GPM 1.844110725 gallons / watt
mm ok deeper IS better if the pump can handle the pressure
actually quite sad now no idea which way to go 3m depth is only 120" that puts me @160 GPM
do I go for 100L / 116 watt pump or 200L/ 180 watt pump with more depth ...
then their is the Hailea V60 35 watts
4 inch head
39.6103066 60L 0.01 MPa 67.6663223802 GPM 1.9 gallons / watt
79.2206132 40L 0.02 MPa 62.99264476039999 GPM 1.8 gallons / watt
118.8309198 10L 0.03 MPa 46.13896714060001 GPM 1.3 gallons / watt
some regen blowers low surface depth
http://www.jehmco.com/html/regenerative_blowers.html
RBSEZ-03 GPM GPM/Watt Watts
14inch 566lpm 671.246 3.570457447 188
27inch 311lpm 367.117 1.523307054 241
RBSE-.3
14inch 679lpm 808.88 2.407380952 336
27inch 509lpm 608.281 1.617768617 376
RBSJ-04
14inch 1047lpm 1257.104 4.521956835 278
27inch 821lpm 988.297 2.700265027 366
54inch 396lpm 484.066 0.8462692308 572
ps sorry for the hijacking I figured I would share some math I was doing this arvo ..
also if someone can correct me on any reason why not to run a shallow airlift for low head application please let me know
all I will be running is an moving bed bio filter on the side of the tank
RBSJ-04 looks like a good blower, shame its over kill for me and will be a higher running cost
RBSEZ-03 gets my 100KLhr (26417.2 GPH) water change for under 200watts @ 40 min
http://www.gastmfg.com/support_documents/LTD139rE.pdf
anyone used gast before ?
its either they have GODLIKE efficiency or lie on their charts ... these blowers seem to have 2x performance/watts of any other blower I have data sheets on