Use coolers for your root zones too.
Dude's pump has a 3 year warranty.Second, DC pumps/motors use brushes that do not last very long.
Third, it has always puzzled me why people will build some high tech complicated hydroponics system and use it to grow inside a thimble. Yes, even inside a thimble your yield will be higher, but if you were to add 6 inches to the cabinet and throw a few dirt pots inside rather than the TAG, your yield would be the same and without all the noise, mechanics, pumps, reservoir management, and overall problems.
Third, it has always puzzled me why people will build some high tech complicated hydroponics system and use it to grow inside a thimble. Yes, even inside a thimble your yield will be higher, but if you were to add 6 inches to the cabinet and throw a few dirt pots inside rather than the TAG, your yield would be the same and without all the noise, mechanics, pumps, reservoir management, and overall problems.