Can anyone rate the primochill Typhoon III?

[Mellowyellow]

Not at all. Does your T3 have a 1/4" pump mounting bracket or the new 3/8" mounting bracket? We switched to the 3/8" (Yes CM I now got your meaning) and allen screws to prevent the tendency to over tighten those screws. The problem is that once the bracket has touched the T3 body any further tightening does nothing but subject those brass inserts to high loading. With the allen screws it is just harder to over tighten them. I am not saying you did of course, but if a user does use one of the chemicals that can cause cracking, the cracks will form in high stressed areas first--like the inserts.

The T3 is a very sturdy well made acrylic and polycarbonate product but at the end of the day it is still a plastic part--worse a clear plastic part. It puts me in a tough spot because ANY clear plastic part will have issues with glycol, alcohol etc and will always loose the fight with an over tightened screw--that's why we use the inserts.

We are coming up on two thousand T3's now in service...and unfortunately people without issues rarely post

I have also seen several threads (not here) where a well meaning guy will tell somebody that PrimoChill is saying use PrimoChill fluids just to make people buy their fluids and that any fluid is fine. That is 100% NOT the case. Using a cleaning solution with alcohol (which a lot of windex type products have) or a cooling fluid with alcohol or glycol WILL DESTROY any acrylic part, and likely any clear plastic part. The warning message is posted right on the product page, is on a sticker right on the T3...and people still think it is some kind of sales ploy. Then when it breaks they get mad.

It has the 3/8's and the allen screws, I never have worked with acrylic before and I was worried about over tightening, so I did slightly over flush then tightened again when it leaked cause I thought it was not well seated. Same with the inlet ports, those were a little weird, when tight one side of the thread would be in slightly more flush while the other side left more room for the O-ring and it was not completely flush. It was like it wasn't going all the way in.. I am not completely sure.

I am glad you have 2000 units in service with out issues, that means my next one will be spot on..
Side note, why isn't there directions with the unit?