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Should U upgbrade my proposed tubing from 3/8x5/8 to 1/2x3/4?

post #1 of 6
Thread Starter 
I will be running a dual res/dual pump combo in serial, with an EK Supreme HF, and Koolance RIVE and (1x) 7979 block.
Should I bother upgrading my fittings and tubing to 1/2x3/4 or will 3/8x5/8 suffice?
Also, is there a big difference in flexibility and proneness to kinking in those two sizes?
Tubing in question would be Primochill Primoflex PRO LRT, and fittings Bitspower compressions.


PS
Geez, I really messed up that title. redface.gif
post #2 of 6
i personally prefer 1/2x3/4 due to the ease of removing tubing over the smaller diameter.

but at the same time it is harder to fit through smaller bends therefore more prone to kinks. there should be ample space between each fitting junctions, so kinds would not be a worry unless you are making some weird loop.


my 2 cents
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post #3 of 6
Performance-wise, there's no improvement going to 1/2" ID. 3/8" ID is going to have a smaller bend radius, so if you're planning any kind of tricky routing it will be easier to work with.
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post #4 of 6
Which do you like the look of most? Go with that.

As stated there is negligible performance difference between the sizes, and the thinner tubing is better for tighter turns. If you want the thicker tube and tighter turns have a look at some tubing coils; super cheap, good looking (subjective of course) and fairly effective at reducing the minimum bend radius.
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post #5 of 6
I did exactly what you are contemplating a week ago. I went with mostly Bitspower fittings and I think the end-cost for me was about $170 in fittings/new tubing and a good 8 hours downtime to replace all. There has been zero impact on pump flow, temps, etc...but the shiny Bitspower fittings look great...and for me it was about the aesthetics. I just like the bulkier look. Some things to know...the larger/thicker tubing is harder to use.You need to plan your loop out carefully...both in terms of flexibility of the tube, getting the tubes into the fittings, making sure you figure out the order to put your tubes in, and I would pre-fit the fittings so you're not putting a ton of torque on the blocks.
post #6 of 6
imo 3/8id 5/8od is better. Has that same great monster bend radius as 1/2id 3/4od if not better, minimalistic look instead of that bulky look and besides in most cases 5/8od looks great and doesn't overpower anything with its bulkiness. 1/2id 3/4od makes blocks and cases look out of proportion to me.

Stay with what you have instead of wasting more money on fittings you already have, changes in flow/temps would be negligible.
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