had a MAG 2 that ran fine till i took the system to a LAN party
started a slow drip leak out of the front of the pump but as it was in a rad box it wasn't a probelm
while rebuilding the cooling system a while later, i replaced the o-ring with RTV sealant and it was leak free again for a while
recently started leaking again so i just replaced it with a Eheim 1250
knocked about 15 deg F off my temps
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