The question was directed towards you PoolDoc! Since this ppgmeasap asked a similar question to one I asked on this thread a few days ago :-)

I was basing a lot of my initial choices based on your sticky post titled "Recommended equipment for new inground pool" which recommends Pentair pumps and filters. Do you recommend switching my choices to Hayward due to this DIY warranty issue? I particularly like that the Pentair manual for cartridge itself recommends the use of DE (best of both worlds).