Pentair IC20, IC40: how good are they

[PoolDoc]

We don't recommend them. I've installed several myself and have not been pleased, because the life expectancy is low, compared to other units.

The Hayward / Goldline and the AutoPilot units are the ones people tend to be most pleased with.

You didn't include a location in your registration, so this may not apply -- but some parts of the country have problems with lighting and resultant voltage surges damaging equipment. If you are in such a location, you should consider adding a surge suppressor like this one:

Intermatic PS3000 Pool and Spa Surge Protective Device

There are other suppressors that will work, but putting them on a pool voids their warranties. (One company even has a picture of a pool as part of their surge product catalog illustrations -- but still specifically excludes outdoor equipment -- like pool equipment!)