I was just looking at these skimmers and they have designated venturi pumps. What kind of venturi do they have? Mazzeri, Beckett type or their own?
RK2 Skimmer
- Thread starter Deano1956
- Start date
Ok but do you know what kind of injector or venturi? i am looking to start building a large skimmer with a 1 1/2" Mazzeri or dual 1" venturi's, like i'm think of 16" dia. reaction chamber at 72" tall plus neck and cup. It would be recirculating with a feed pump as it looks like the commercial are made that way.Zoodiver;4188168; said:
Go needlewheel!
Although RK2 has pushed the efficiency of their units to the extreme, they are still venturi driven systems. Venturi's function by taking volume of flow and restricting diameter abruptly to increase velocity. Pressure is PARAMOUNT in operating these systems. Pressure is costly in terms of elec. consumption. I am a big proponent of large needlewheel / aspirating skimmers. I'm building one from a 55 gal drum and a modified Hammerhead and linear piston air pump. Cost will be around $800 but the big thing is <400 watts TOTAL (air and water.) Let me know if I can help.
Although RK2 has pushed the efficiency of their units to the extreme, they are still venturi driven systems. Venturi's function by taking volume of flow and restricting diameter abruptly to increase velocity. Pressure is PARAMOUNT in operating these systems. Pressure is costly in terms of elec. consumption. I am a big proponent of large needlewheel / aspirating skimmers. I'm building one from a 55 gal drum and a modified Hammerhead and linear piston air pump. Cost will be around $800 but the big thing is <400 watts TOTAL (air and water.) Let me know if I can help.
Worth mentioning that you will need to build your own LARGE NW skimmer. Commercial systems are almost always venturi driven. Bermuda, RK2, Solar Components, ... All pressure pump venturi driven systems. ETSS uses pressure as well for "downdraft" skimming. Bang for buck the ASM G6 is big, but Submersible pumps are NOT acceptable with sharks. They also put heat in the system.
Yea I'm not a fan of needle wheel driven skimmers, the good thing about mazzei injectors is that they dont need high pressure pumps like the becketts do. I am playing with a 1" Mazzei right now and am going to tie two little giant # 4 mdqx pumps to shoot thru it and use about 158 watts of electric.