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Originally Posted by JWFokker
Holy thread resurrection Batman!
Also, I wouldn't want a block with an aluminum or poly top in my system, but that's just me.
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I agree with you on the most part.
But let me clarify or highlight one thing with the AL topped WW.
AL topped WW is the only block - that I know of - where there's minimal contact with AL top and H2O.
Meaning, thanks to the Copper Mid Plate, since it covers the entire surface of the AL top, except the inlet and outlet holes, water is barely in contact with AL. and don't forget, the fittings are inserted in to those threaded holes, so exposure of aluminum (that's anodized ofcourse) to H2O is extremely minimal.
BTW I'm running an AL topped WW and a MCW50 GPU block in one of my systems for the last 2 yrs without any problems. Using distilled H2O w/ 15% Zerex RSC mixture as the coolant ofcourse.
As for the poly tops, I agree with you on the
tapped poly tops. When a
tapped poly top is used, one should avoid putting metal barbed fittings on it and wouldn't let heavy 1/2"ID x 3/4"OD x 1/8"WALL tubing hangin' from the barbs, unsupported.
Quick-Connects and 3/8"ID x 1/2"OD tubing are the best for
tapped poly tops IMHO.