At some point I will upgrade to hard acrylic. However, I don't know the best way to put in a drain port for my setup. I was thinking of leaving one of my runs(short run from res to rad) with a quick disconnect and a regular tube so that I could easily drain it when needed, but I think this will look wrong. 
 
What do you guys think?
 

 

very nice. This gives me some direction. 
 
thank you!!

For the most part I no longer use a drain plug but use Quick Disconnect No-Spill Coupling and you have a lot it pick from.
I have one of each Male and Female connected to a piece of tubing and this is how I drain my systems now.
 
or $11.99 QD3 Male Quick Disconnect No-Spill Coupling, Compression for 13mm x 19mm (1/2in x 3/4in) 
 
And
or $14.24 QD3 Female Quick Disconnect No-Spill Coupling, Compression for 13mm x 19mm (1/2in x 3/4in)

Quick Disconnect Couplings

Koolance quick disconnects couplings are specially designed fittings which automatically shut-off coolant flow upon disconnection. The flow path is reestablished when the QDC couplings are reconnected. Quick disconnects are very useful for areas in a cooling or plumbing system that are altered and moved frequently. They can also increase convenience when transporting or draining a system.
 
QD2 Series (8)QD3 Series (36)QD4 Series (6)
 
My Water Cooling Drain and Clean Kit.
   The Coffee Filter is used to Filter the Liquid Coolant before I reuse it, I will do filter it two times. 

 

I will keep my current bay res/pump and then put a 3 or 4 way to a quick disconnect. When I need to drain it I will connect the QD and drain away. My second loop will have a UT-60 res by aqua cool. It has several ports on the res, so I can just use one for another QD to drain that loop

Scarlet-Tech
I know this is really late, but I wanted to share.  I finally, after a year of holding onto my black QD3's, used them in my 5960x setup for testing everything out.  I ran 2 XSPC radiators, 6 QD3 sets, a Koolance Pump, and Primochill Advanced LRT Tubing.. For liquids, I used Distilled water.  It was a very temporary loop, so I did not see the point of pouring in biocides or throwing in kill coils, or anything like that.  The rest of the loop is in perfect condition. No Leeching of the tube, not marks on the other fittings, waterblocks look great... but I will not buy another painted fitting from Koolance. I am going to try to send them back and see if they will switch them out for the unpainted version of the QD3.

Just going to say, I had the same thing happen with the silver disconnects. Was using distilled and a silver kill coil, after about 6-8 months when I flushed the loop the first time I noticed the same thing. Personally I have never really had much luck with there stuff but many seem to have. Since its not affecting any of my other blocks as well I'm not to sure how concerned I should be. 

I use only unpainted version of the QD3, but users did ask for Black.

Scarlet-Tech
NEVER IN MY LIFE will I pay for another koolance product. That company can burn. They just responded that since I didn't use koolance fluids, and had used only distilled water, that they won't cover the fittings. Never again. Multiple defective reservoirs, messed up pump tops, and now busted fittings, and they put them blame on me for that? Nope, everything I own from them is going in the trash.


I have two still in the wrappers. dylan from Koolance says that if I use Koolance specific fluids, they will never corrode. I am going to waste the $15 and shipping to find out. I will not purchase any other items from them again though. That is a huge load of garbage from them. I regret ever buying anything from them.

Sorry to here that, I do use only their LIQ-702 coolants as it states it on their site.
It also may be that other Web Sites that sale Koolance's products are not telling users.
I only Buy Direct from Koolance's Web Site.
 
Koolance's product warranty does not cover the use of 3rd-party coolants, coolant additives, or corrosion. Koolance LIQ-702 or LIQ-705 coolants are strongly recommended to help avoid issues with mixed metals or biological growth. Additionally, do not use aluminum with bare (unplated) copper or bare (unplated) brass in the same system. Do not use silver with nickel in the same system.