golfish, the topic we are refering to means nothing about overflowing into a sump, i do not trust hangon overflows, b/c a loss of power, can cause a loss in prime, which can result in a problem on the floor, i do not trust them personally, but a drilled overflow or one built in, IMO is just the cats meow (so to speak), i do like overflow sumps, but as brought up by myself and others i only do not trust hang on type overflows
yes, go witht the mag pump, i also do not trust rios as well as hangon overflows
and sorry but i must decline to answer about where or who, you can check out here (swf.com does carry some equipment, but i am not sure about what)or run a search, but i wholly support swf.com and our sponsors, if they do not have it here even, i will not redirect others ot other sites(personally)