So I got a couple of the new maxijet1200s that come with the laminar flow impeller and casing... Theyre terrible! I cant get them to stay together unless I hold the cover on while I start the pump. Every time the power goes off and then back on, the guard flies off and the impeller blade comes flying out. Anyone else ran into this? I guess I could glue the guard on, but wouldnt be able to change the impeller down the road then. Also, id say they only put out about half the gph of the old modded mj1200s 
Nick

Nick