Spoke with Jeff at life reef yesterday for a long while. I’m done trying to get my bubble king to act right. I know BK is supposed to be one of the best but honestly mine has been nothing but a head ache. Anyhow Jeff wants to build me a VS3-27 and recommends the Mag 12 pump instead of the mag 9.5 due to the increased height of the skimmer. I know life reef has a great following from the people that decide to go with his products, any body currently using the mag 12? I’m not opposed at all to running an a/c skimmer pump just wondering about noise and heat output and any other general input from people using a life reef skimmer. Sump depth, stuff like that. Post pics if you got them as well!
Jeff prefers AC pumps. Always has, always will. The original pump that I purchased it with was an Iwaki. I'm currently using a DC pump, Cor 20. No other reason than the Iwaki died on me and this is what I had on hand. I prefer the Iwaki but the Cor 20 works fine. One benefit is that that I can throw it in feed mode if I want to dose coral foods or something that the skimmer shouldn't be on for that isn't a hard off like cutting power. Probably not a huge deal, just one thing that is different if you will.
Noise? Depends on how sensitive your hearing is or those who are around the space. If you take the collection cup off, you will hear it. If you take off the venturi to collection cup hose, you will hear it. Beyond that, I don't know - it isn't a huge concern of mine. Also it doesn't help any that my hearing isn't the best due to working around fighter aircraft.
I've not noticed any heat but it also is not a concern of mine. If if is a concern one can install the skimmer/pump, outside of the sump. I do not believe this would be a huge concern but I acknowledge that pump can generate heat.
I invested in one of his skimmers back in 2000 and still using it today. Skimmers are just not something that need to be changed out and when properly taken care of will outlast the hobbyist time in the hobby. In my opinion.
I run a thicker skimmate. My guess is that there are other skimmers that work equally well. I am just one hobbyist who happens to prefer Lifereef. Prior to this skimmer I had an ETSS which did not run as well as this one. The only other skimmer I own is a CPR Bak Pak which was used on a 40 breeder. That is a great little kit if I am being honest but this is about Jeff's products.
Note: original purchase was for my 100 gallon. It is now running on my 210 gallon. I will be upgrading to a 370 and I will carry it forward. It is a VS2-24 I believe.
TL; DR - Jeff's preference is AC but if you ask him he will say a DC will work.